vixentael 🛡🇺🇦 @vixentael Twitter profile | Pikagi

Pikagi

vixentael 🛡🇺🇦

@vixentael

26,544

Followers

1,878

Following

1,209

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10,304

Statuses

I do software security, security engineering and applied cryptography | problem-solver @cossacklabs | she | part of @wwcodekyiv | Ukraine

Kyiv 🇺🇦 London 🇬🇧 online

https://t.co/5EItDWUUxn

Joined March 2012

Don't wanna be here? Send us removal request.

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@vixentael

vixentael 🛡🇺🇦

2 years

Life is so full of surprises. As a professional community, we giggled over "military-grade crypto" for a while, but ended up having to bring modern cryptography & security into military context instead. Working around the clock.

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Cossack Labs stands on guard for security of Ukrainian companies | Cossack Labs

Cossack Labs stands with Ukraine and offers free security assessment and engineering services for Ukrainian companies to improve country protection and resilience.

www.cossacklabs.com

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@vixentael

vixentael 🛡🇺🇦

2 years

If I die today plz remember me! #kyivnow

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@vixentael

vixentael 🛡🇺🇦

2 years

I'm ok, my team is ok. We continue doing #cybersecurity things and using our special skills to protect the country 🇺🇦 Glory to Ukraine!

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@vixentael

vixentael 🛡🇺🇦

2 years

Thank you for all your best wishes! I hug you all (one by one) 🤗 This what not how I imagined to spend today. Send cute animals pics? Or donate to ukr volunteers and army!

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@vixentael

vixentael 🛡🇺🇦

2 years

Important update: I’m still alive. Arrived to a more quiet place (at least for now). Kyiv was under missile attack this morning at 04:25 am. WTF. I wanna write about security engineering not about the fckng war. #RussiaInvadedUkraine

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@vixentael

vixentael 🛡🇺🇦

2 years

Still alive. The situation is stable bad.

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@vixentael

vixentael 🛡🇺🇦

2 years

Cyberwarfare is not a joke. I and my team are a bit busy with quickly re-learning how to use our security engineering skills in this new environment. Maybe they will let us share some of our cases after our victory. Glory to Ukraine! 🇺🇦

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@vixentael

vixentael 🛡🇺🇦

2 years

Still alive

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@vixentael

vixentael 🛡🇺🇦

2 years

All quiet in Kyiv right now, but very nervous

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@vixentael

vixentael 🛡🇺🇦

3 years

The story of my life.

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@vixentael

vixentael 🛡🇺🇦

2 years

I slept 0 hours

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@vixentael

vixentael 🛡🇺🇦

2 years

A typical 🇺🇦 day. Wake up, drink coffee, grab laptop and start working, get air raid notification, hide in the hall "2 walls rule", hear explosions, ask all friends/colleagues if they are ok, continue working, wait until air siren is off, make more coffee and charge the laptop.

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@vixentael

vixentael 🛡🇺🇦

2 years

The only difference between 20h and 20 is experience. HB to me 💃

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@vixentael

vixentael 🛡🇺🇦

2 years

Keeping war-life balance.

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@vixentael

vixentael 🛡🇺🇦

1 year

I wanna say thank you for everyone’s overwhelming support during the last year. For your messages, warm words, cat pics, offers to help, trust and care ❤️ Continue resisting 🛡️

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@vixentael

vixentael 🛡🇺🇦

2 years

This is how my morning started a week ago. Crazy scary. But not anymore. We are fighting for our land, our people and our freedom. 🇺🇦

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@vixentael

vixentael 🛡🇺🇦

2 years

I’m alive. My team and their families are fine. We set up coordination centers in different places, continue to work, and protect UA. To all my followers. Support Ukraine. Goto protests, donate $$, request your gov to send UA ammo, and block Ru companies. #RussiaInvadedUkraine

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@vixentael

vixentael 🛡🇺🇦

2 years

sudo rm -RF *

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@vixentael

vixentael 🛡🇺🇦

4 years

Hello new followers! 🥑 I'm Anastasiia, I do software security and applied cryptography: risk-driven, not hype-driven. Build tools and solutions @cossacklabs . Share a lot about boring crypto, e2ee, data security, zero knowledge, software security architecture. Welcome! 👋

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@vixentael

vixentael 🛡🇺🇦

2 years

It’s march 24th already. A month ago my life was ok. I had a dinner in a nice bar. Discussed new mentorship project. Walked home. Worked, read news. News was scary, stared to pack a backpack. Haven’t slept. Explosions hit at ~0510am. 28 days later, nothing will ever be the same

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@vixentael

vixentael 🛡🇺🇦

2 years

Even darkness must pass. A new day will come. And when the sun shines it will shine out the clearer.

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@vixentael

vixentael 🛡🇺🇦

2 years

I think at this point I can put “can work under stress” in my CV 🧐

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@vixentael

vixentael 🛡🇺🇦

2 years

From #infosec perspective — every hour now brings x10 experience to my team. We do things we've previously only read about in NIST guidelines. We build things we haven't read anywhere before, and they are working. Fast, efficient, secure. Security engineering FTW.

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@vixentael

vixentael 🛡🇺🇦

2 years

To all my followers. Support Ukraine. Russia bombed our cities, our apartment buildings, our critical infrastructure. Watch what is happening. Go to protests. Ukraine will win, the spring is coming after even the scariest winter. #RussiaInvadedUkraine

@ua_parliament

Verkhovna Rada of Ukraine - Ukrainian Parliament

2 years

PARLIAMENTS, GOVERNMENTS, NGOS, MEDIA WE NEED YOUR HELP! Please broadcast this video! The world must know the truth about what is happening in #Ukraine ! @NATO close the sky over Ukraine!

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@vixentael

vixentael 🛡🇺🇦

2 years

I’m happy to announce Security Squad: Reunion! 🛡⚔️ #datasecftw @julepka @s1LentHil @cossacklabs

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@vixentael

vixentael 🛡🇺🇦

4 years

Isn’t today a day to remove Fb SDK from your app? #iosdev #fbcrash

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@vixentael

vixentael 🛡🇺🇦

5 years

Hi there. I’m Anastasiia, and I’m 29 today 🤟 I like coding/researching till 5am and cats (🐶 would wake me up at 8am and it’s not okay). I also have life besides engineering (but nobody except slaves in my basement know about that 😏. This is not slavery endorsement, btw).

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@vixentael

vixentael 🛡🇺🇦

2 years

A good radio antenna and a bit of cryptography knowledge allow to hijack remote control devices 🚘 Nothing complicated: padding oracle, nonce reuse, bad keys, replay attacks. But open source, popular, and exploited in a wild. Read our research:

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Cryptographic failures in RF encryption allow stealing robotic devices | Cossack Labs

Stunned by losing their robotic devices, [REDACTED] learnt that they were hijacked by attackers even with communication being encrypted. Having researched its firmware and found numerous cryptograp...

www.cossacklabs.com

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@vixentael

vixentael 🛡🇺🇦

1 year

Happy holidays! Kyiv war-time cakes set the mood 🎄

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@vixentael

vixentael 🛡🇺🇦

2 years

I have food, water, powerbanks, candles, thermos bottle with coffee, bathroom office (no windows, double walls, pillows everywhere), duplicated internet channels, masks, geiger counter and many more. russia cannot do anything to stop me from doing what i'm doing :)

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@vixentael

vixentael 🛡🇺🇦

2 years

Have you always wanted a SU-34 “Fullback” strike fighter? Drones for Ukraine ( @vysoven ) send a real piece of downed russian plane for every large donation from $1000. Made in russia, recycled in Ukraine 🇺🇦

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@vixentael

vixentael 🛡🇺🇦

3 years

Important update 🔮 It’s my birthday today, and I got a disco ball! 💃🥂✨🎂🍫

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@vixentael

vixentael 🛡🇺🇦

5 years

Making a security talk at @Apple 😎 Can’t say more 🤐

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@vixentael

vixentael 🛡🇺🇦

2 years

We don't sleep. We work on our victory.

@BentleyAudrey

Audrey Renée Bentley

2 years

Has anyone else barely slept in the past week? All I can think about is the people of Ukraine. We need to do more.

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@vixentael

vixentael 🛡🇺🇦

2 years

There is no such thing as weekend anymore. The war doesn't stop, so don't we. #infosec continues working.

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@vixentael

vixentael 🛡🇺🇦

5 years

If you want to measure time difference between two events you shouldn't rely on current time, because user can change clock back. You could use monotonic clock or boot timer instead. F.e. this code piece allows your app to lock some features after X secs. #iosdev

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@vixentael

vixentael 🛡🇺🇦

2 years

Cyberpunk which we deserve. "Notice! Internet access via Starlink11 (pwd 27031995) is available nearby village center starting from 10 April 2022. from 0900 to 1030 from 1500 to 1630."

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@vixentael

vixentael 🛡🇺🇦

2 years

Bye-bye 2021! Let 2022 be better for us of all 🥂

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@vixentael

vixentael 🛡🇺🇦

3 years

Are the next star wars coming?

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@vixentael

vixentael 🛡🇺🇦

2 years

ahah this didn’t age well 😰🤬

@vixentael

vixentael 🛡🇺🇦

2 years

Bye-bye 2021! Let 2022 be better for us of all 🥂

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@vixentael

vixentael 🛡🇺🇦

4 years

- Where do you store data? - In a cloud. Now imagine that “the cloud” is 500 TB dropbox account, that stores the database of web site run on Heroku. True horror story, must read.

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From the sysadmin community on Reddit

Explore this post and more from the sysadmin community

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@vixentael

vixentael 🛡🇺🇦

2 years

My heart hurts, but my brain is sharp and cold. Lots of things ahead.

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@vixentael

vixentael 🛡🇺🇦

4 years

The problem is that developers design their systems to impress other developers, instead of solving users' needs. Especially in infosec.

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@vixentael

vixentael 🛡🇺🇦

2 years

I found 3 bugs while reading crypto code for 20 min: AES-CBC nil IV, unreliable random, and outdated/vulnerable library used. Swift, Kotlin, C. Plz audit your cryptocode. And maybe don't market your product as super secure if it was not audited. Thanx for coming to my tedtalk.

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@vixentael

vixentael 🛡🇺🇦

2 years

That's actually much better than when missiles hit during night. Waking up at 3am due to air raid siren, make a temp bed in a hall "behind two walls", wait for explosions (one night i counted 9), go back to bed trying to catch last hours of sleep. A recipe for a day headache.

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@vixentael

vixentael 🛡🇺🇦

5 years

Using secure enclave is that easy now #wwdc19

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@vixentael

vixentael 🛡🇺🇦

2 years

@vixentael

vixentael 🛡🇺🇦

2 years

I'm ok, my team is ok. We continue doing #cybersecurity things and using our special skills to protect the country 🇺🇦 Glory to Ukraine!

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@vixentael

vixentael 🛡🇺🇦

2 years

Perfect reading for this Saturday 🧨

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@vixentael

vixentael 🛡🇺🇦

4 years

#KyivNow

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@vixentael

vixentael 🛡🇺🇦

2 years

When I started speaking at intl conferences, I often was the only Ukrainian there. It was scary, and confusing. Through the years, 🇺🇦 community grow, we made friends, shared ideas, and visited each other. Thank you for being with us! Happy Independence day for Ukraine! 💛💙

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@vixentael

vixentael 🛡🇺🇦

1 year

I’ve crossed the boundary of EAX — there’s life over there! Onwards to RAX 😎

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@vixentael

vixentael 🛡🇺🇦

1 year

Sorry that I don't tweet often now.. War, locations in different cities, opsec — I'm always on a run (in a good sense, but also in a bad). Many things that excited me previously have faded. Many things that excite me now I'm not allowed to post due to their sensitive nature😅

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@vixentael

vixentael 🛡🇺🇦

1 year

Happy new year! 🎆 A year of prosperity and anti-terrorism 😏

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@vixentael

vixentael 🛡🇺🇦

3 years

Nice sunny winter day in Kyiv 🇺🇦 A bit cold 🥶

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@vixentael

vixentael 🛡🇺🇦

5 years

Me, having fun at #cocoaheadsua #cocoaheadskyiv @CocoaHeadsUA

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@vixentael

vixentael 🛡🇺🇦

2 years

I gave an educational online talk about data security and encryption today while Ukr air defense was shooting down missiles and drones above. Heard three explosions. Stress tolerance: 10/10

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@vixentael

vixentael 🛡🇺🇦

4 years

I am a pup-sitter for this weekend 🐶 Chorizo is 7weeks old dachshund who chews everything 😅

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@vixentael

vixentael 🛡🇺🇦

2 years

I can’t express what I feel right now.

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@vixentael

vixentael 🛡🇺🇦

2 years

Have you always wanted a SU-34 “Fullback” strike fighter? Drones for Ukraine ( @vysoven ) send a real piece of downed russian plane for every large donation from $1000. Made in russia, recycled in Ukraine 🇺🇦

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@vixentael

vixentael 🛡🇺🇦

3 years

Did you know that weeks are enumerated differently this year? Depending on how you count — today is on the second week or third week. According to ISO 8601, now is week2 (not w3). Because 1 Jan was on Friday, it counted as w53 of 2020, not as w1 of 2021. Be careful in planning.

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@vixentael

vixentael 🛡🇺🇦

7 years

I have switched to Xcode9 completely. Fastest switch ever. Fastest Xcode ever. ❤️ you, Apple team!

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@vixentael

vixentael 🛡🇺🇦

2 years

I think anyone who wanna be a CISO should read this book by @C_3PJoe Especially “Part III Defending against social engineering”.

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@vixentael

vixentael 🛡🇺🇦

2 years

A small teaser of a research we are releasing next week. TLDR: cryptographic failures exploited in the wild which allow to hijack certain devices via RF communication.

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@vixentael

vixentael 🛡🇺🇦

6 years

Random chat with two guys in a lobby #javazone Guys: Why do you have blue ribbon, we got orange? Me: Guess. G: Is it because you're girl? M: O.o Nope, try again. G: Is it because you're young and we're old? M: Omg, no, because I'm speaker. G: Really?! You don't look like. 🙄

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@vixentael

vixentael 🛡🇺🇦

2 years

My (maybe last?) blog post on cloud native security is coming soon ¯\_(ツ)_/¯

@charleshumble

Charles Humble (@[email protected])

2 years

The next issue of @containersoluti #WTFIsCloudNative includes pieces from @madplatt on the people part of DevSecOps, @vixentael on cloud native data security, @regwatcher on supply chain security, and more. Get the newsletter:

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@vixentael

vixentael 🛡🇺🇦

5 years

My speaking badges for 2018 😱 And I still have four meetups in Dec 🤪

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@vixentael

vixentael 🛡🇺🇦

2 years

hi @xuanling11 ! you put my hand-drawn image from my presentation about ZKP in your blog post, but cut all links and my nickname 🤬🤬🤬 please don't do this. it'd be better to leave my copyright, or even more — to actually link to my presentation.

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@vixentael

vixentael 🛡🇺🇦

8 years

I'm in love with #swiftlang 2.2 -> 3.0 Migration Guide! 💕💓 💖 #iosdev #wwdc2016

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@vixentael

vixentael 🛡🇺🇦

2 years

It's a good time to talk about Building secure and reliable systems book. I read it multiple times, each time uncovering more details and tips. Just open a random chapter and read. 100% recommend for every software / security engineer.

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@vixentael

vixentael 🛡🇺🇦

3 years

In Ukraine we celebrate 2 Christmas dates: 25 Dec – Catholics and 7 Jan – Orthodox. Both days are official holidays 😊 So, technically speaking, we are drinking and partying since end of Dec to Jan 10 🥂

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@vixentael

vixentael 🛡🇺🇦

3 years

Remember Monday incident with Google AuthN? Here is the incident report 👀

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@vixentael

vixentael 🛡🇺🇦

3 years

Online conferences be like :)

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@cossacklabs

Cossack Labs

3 years

Join us at #NoNameCon !✌️ In an hour, meet ⭐️️ @vixentael at @NoNameConOrg to deep dive into making #cryptography work for ML models protection. And at 3 pm (UTC+3) join ⭐️️ @julepka to speak about #security architecture and tradeoffs. Live ➤ #infosec

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@vixentael

vixentael 🛡🇺🇦

2 years

Kyiv morning. Woke up from the explosions. #russiaisaterrorisstate

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@vixentael

vixentael 🛡🇺🇦

4 years

ReactNative apps are very good for security. Especially if it's a "shell app", and all code is downloaded during first server request. Please use them. Yesterday I found API endpoints I need just by intercepting one request. Very useful. Very timesaving. Thank you devs.

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@vixentael

vixentael 🛡🇺🇦

7 years

I have sinned.

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@vixentael

vixentael 🛡🇺🇦

5 years

For everyone who believes that TLS is enough 🤦‍♀️ Kazahkstan starts officially doing MitM attack for all users. Providers sent text messages requesting users to install root certificate and started to intercept traffic.

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@vixentael

vixentael 🛡🇺🇦

5 years

macOS Keychain, go home, you're drunk.

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@vixentael

vixentael 🛡🇺🇦

2 years

Pin this for your corporate security awareness trainings :)

@AricToler

Aric Toler

2 years

Ukrainska Pravda (w/ SBU help) figured out if Kadyrov was actually in Ukraine, as he claimed, by sending him a "draft" for a story on Telegram for him to review. He clicked it, and saw from server logs that he was actually in Grozny. Easy phishing target!

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vixentael 🛡🇺🇦

6 years

Enjoying amazing Stockholm view from @Spotify office! Awesome afterparty after long conference day at #swiftandfika 🤩

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@vixentael

vixentael 🛡🇺🇦

2 years

Hasn't helped. Great book anyway.

@vixentael

vixentael 🛡🇺🇦

2 years

Perfect reading for this Saturday 🧨

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@vixentael

vixentael 🛡🇺🇦

3 years

yes, NO PHONE NUMBER is a correct number.

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@vixentael

vixentael 🛡🇺🇦

5 years

Slides from my talk about maintaining crypto lib: easy to use vs hard to misuse. #BlackAlps19 @BlackAlpsConf If you use any open source libs, do me a favor, and say "thank you" to the maintainers 🧡

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@vixentael

vixentael 🛡🇺🇦

2 years

Being a security company and writing BCP is one thing, but executing it — is another thing.

@cossacklabs

Cossack Labs

2 years

Thanks for all care and support. Our team is safe, security services and solution/product support are fully operational for our customers. Every free moment is spent doing our civil duty: making sure Ukraine gets max advantage from our skills. #StandWithUkraine

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vixentael 🛡🇺🇦

2 years

Cybersecurity during war: my experience. Tomorrow join charitable stream with @asolovyov and me. We are raising $$$ for 🇺🇦 military forces. Language: ukrainian. 9 aug, 1800 Kyiv time. cc @cossacklabs @fwdays

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@vixentael

vixentael 🛡🇺🇦

2 years

Ukrainians use dozens of special purpose mobile apps now. Artillery, planning & syncs, C2, C2ISR, controlling weapons, etc. Some operations are fully robotic now. Mesh networks, AI / ML, real-time video streaming, etc. Just saying 🌚

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@vixentael

vixentael 🛡🇺🇦

5 years

Cryptography session is on! #wwdc19

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@vixentael

vixentael 🛡🇺🇦

3 years

Noone asked, but this is how (a part of) @wwcodekyiv org team looks like. 4 years ago we started Kyiv chapter, now it unites more than 10 technology streams and ~2000 software engineers 🔥

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@vixentael

vixentael 🛡🇺🇦

7 years

Combined list of my #security and soft talks, with slides, videos and blogposts 👀 Cute drawings included 🦊 #iosdev

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GitHub - vixentael/my-talks: List of my talks and workshops: security engineering, applied crypto...

List of my talks and workshops: security engineering, applied cryptography, secure software development - vixentael/my-talks

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@vixentael

vixentael 🛡🇺🇦

4 years

AGAIN?!

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Apps suddenly started crashing, crashlytics velocity alert on +[FBSDKEventDeactivationManager...

Firebase Crashlytics started to send velocity alerts on ( at the moment ) 4 of our apps, around 10 minutes ago Podfile: pod 'FBSDKCoreKit', '~> 6.2' pod 'FBSDKGamingServicesK...

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@vixentael

vixentael 🛡🇺🇦

4 years

Ahem, @AppleMusic that’s weird to see ukrainian singer alyona alyona that signs in ukrainian under “russian-language bops” collection. Russian is not the only language with cyrillic alphabet, uknow. Attaching map just in case.

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@vixentael

vixentael 🛡🇺🇦

6 years

Speaking. This is how I do it 😎

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@vixentael

vixentael 🛡🇺🇦

5 years

My full 1h story about implementing end-to-end encryption for @BearNotesApp . More slides, more code, more links 🍷 Watch slides 💻: Or read the post 📚: @frenchkitconf #frenchkit

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@vixentael

vixentael 🛡🇺🇦

7 years

Cocoa-heart ❤️ #CocoaHeadsKyiv

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@vixentael

vixentael 🛡🇺🇦

5 years

CommonCrypto vs CryptoKit #wwdc19 One line of code instead of dozen lines of playing with pointers! One line for encryption, one line for key generation! 🤯🤯🤯 CryptoKit will even zeroing a buffer for you

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@vixentael

vixentael 🛡🇺🇦

2 years

My interview for @doucommunity already has 19K views 😱 If you know ukrainian 🇺🇦 and curious to learn about security engineering career, take a look!

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Анастасія Войтова, Cossack Labs — про те, як змінила розробку на...

Анастасія Войтова — Head of Customer Solutions та Security Software Engineer в Cossack Labs. Також вона Security Lead в неурядовій організації Women Who Code...

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@vixentael

vixentael 🛡🇺🇦

5 years

Next two weeks: 🇨🇭 🔮 crypto engineering training w/ @veorq 🏔 talk, workshop, two days of crypto networking at @BlackAlpsConf EPFL,🧀,🍷,⛰🏔🗻 🇺🇸 🌉 three days of fantastic @QConSF , im hosting intense security eng track on Wed 🌊🚋 🥑

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@vixentael

vixentael 🛡🇺🇦

2 years

@itakenaps We need a new mental health syndrome called "life during war". A mix of anxiety, ptsd, yolo, and emotional indifference.

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@vixentael

vixentael 🛡🇺🇦

5 years

Officially: css is more complicated than cryptography.

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@vixentael

vixentael 🛡🇺🇦

1 year

either i'm doing smth wrong, or MS teams is the worse chat software ever. it's slow, it's not clear if all messages are downloaded, the ui is laggy. how people use it day by day 😫

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@vixentael

vixentael 🛡🇺🇦

6 years

🦊❤️🌊

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