John Kozyrakis

@ikoz

mobile security R&D engineer

London, UK
Vrijeme pridruživanja: kolovoz 2008.

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  1. proslijedio/la je Tweet
    4. velj

    I am releasing ESLinter. A extension that extracts JavaScript and lints them with ESLint. It's part of my application security automation workflow. It lints JS as you navigate in Burp. Enjoy.

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  2. proslijedio/la je Tweet
    28. pro 2019.

    Earlier today someone sent me this : Th Cabinet Office published the new years honours list last night in csv format with it containing all the full home addresses of the recipients. “

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  3. proslijedio/la je Tweet
    27. ruj 2019.

    EPIC JAILBREAK: Introducing checkm8 (read "checkmate"), a permanent unpatchable bootrom exploit for hundreds of millions of iOS devices. Most generations of iPhones and iPads are vulnerable: from iPhone 4S (A5 chip) to iPhone 8 and iPhone X (A11 chip).

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  4. proslijedio/la je Tweet
    3. ruj 2019.

    normal people: it's my birthday infosec experts: THAT WAS HIGHLY SENSITIVE INFORMATION. DO YOU HAVE ANY IDEA HOW EXPOSED YOU ARE normal people: my dogs name is Jack infosec experts: YOU'RE GONE. DONE FOR. IT'S OVER

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  5. proslijedio/la je Tweet
    15. kol 2019.

    Bluetooth is broken: A third party can force a one byte encryption key on any Bluetooth connection in range, even between already paired devices. It's bad.

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  6. 10. srp 2019.

    Also I'm currently on a plane waiting to depart at so hope reboot doesn't take too long.

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  7. 10. srp 2019.
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  8. 24. lip 2019.

    OH in the office today: "JS is closer to C than any other language"

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  9. 11. lip 2019.

    On both Android and iOS, users can list apps that are allowed to use the microphone and turn off their access, which helps. But who actually does it?

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  10. 11. lip 2019.

    Well that's dodgy. How many other apps do this?

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  11. proslijedio/la je Tweet
    9. lip 2019.

    The Reporting Line of Security Teams / CISOs. A thread. Having read many people’s strong-held views on this topic I thought I’d add to the mix. Despite a lot of people now inevitably thinking “is this the hill you want to die on? - here we go…... 1/16

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  13. proslijedio/la je Tweet
    9. svi 2019.

    New Jetpack encrypted files and prefs. "Work with data more securely"

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  14. proslijedio/la je Tweet

    Useful resource for reverse engineering (which is impossible to know it all, so having access to resources help)

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  15. proslijedio/la je Tweet

    I'm releasing all the slides (~800!) of my Mobile Security class: ! They are not perfect, but students learned how to reverse apps, find&exploit real-world bugs, reason about threat modelling / system security, etc. Very proud of them :-) 👶 => 👨‍💻👩‍💻

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  16. proslijedio/la je Tweet

    Android is now on board with the FIDO Alliance's secure login protocols, which means "1 billion devices can say goodbye to passwords in more digital services than seen before" via

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  17. proslijedio/la je Tweet

    Google Play will require apps to target Android 9 (API level 28) in 2019. Find out what that means for your app – including those distributed via other stores – and get started on your migration! 🎯 Learn more here ↓

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  18. proslijedio/la je Tweet
    8. velj 2019.

    Story time. This one is about a feature in Windows called ASLR.

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  19. proslijedio/la je Tweet
    5. velj 2019.

    "Why do I need a 4Ghz quadcore to run facebook?" This is why. A single word split up into 11 HTML DOM elements to avoid adblockers.

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