Jan Hoff

@mehgrmlhmpf

keeping safe and secure since 2009.

somewhere and nowhere
Vrijeme pridruživanja: listopad 2009.

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  1. proslijedio/la je Tweet

    You have been informed of emails impersonating an account you are responsible for? Here is what you can do to check whether the root cause is an infection: via

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  2. prije 6 sati

    report regarding Maastricht University released. Attacker's modus operandi not really surprising. Take the report and get the lessons learned straight into other organizations.

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  3. proslijedio/la je Tweet
    Odgovor korisniku/ci

    Auch CERT-Bund hat viele Unternehmen telefonisch informiert. Aufgrund der großen Zahl skaliert dieses Vorgehen für DE allerdings oftmals nicht. Zudem sind vielen Betreibern schon unsere E-Mail basierten Reports zu invasiv ¯\_(ツ)_/¯

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  4. proslijedio/la je Tweet
    prije 16 sati

    Morgen um 12:05 halte ich auf der einen Vortrag. Ich werde das Konzept einer ehrenamtlichen Organisation für digitalen Katastrophenschutz vorstellen, welches wir in der erarbeitet haben. Der Vortrag wird auch gestreamt werden!

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  5. proslijedio/la je Tweet
    prije 16 sati
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  6. proslijedio/la je Tweet
    prije 18 sati

    Secret's out! announces the release of the TrustedSec Community Guide. Discover the vision for making the guide and how you can contribute to making the best for all things sysmon!

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  7. prije 16 sati

    Tolle Veranstaltung, tolle Speaker, wichtige Themen, ... und alles kostenfrei im Stream!

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  8. proslijedio/la je Tweet
    5. velj

    In Israel gibt es für Cyberprobleme eine Anlaufstelle: den Notruf 119. Wer um die IT-Sicherheit seiner Geräte fürchtet, erhält dort Hilfe. Wie sinnvoll das ist, zeigte sich kürzlich bei einer prominenten Sicherheitslücke: .

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  9. proslijedio/la je Tweet
    5. velj

    CDPwn vulnerabilities impact tens of millions of enterprise devices - CDPwn impacts Cisco's Discovery Protocol (CDP) - CDPwn = 4 RCEs + 1 DOS - LAN exploitable, not via WAN - ideal for escalating access and taking over entire networks

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  10. proslijedio/la je Tweet
    5. velj

    Braucht die Patientin einen Rollstuhl? Muss sie zur Chemotherapie? Dazu Name, Adresse, Geburtsdatum. Daten zu mehr als hunderttausend Einsatzfahrten des in Brandenburg lagen auf einem schlecht gesicherten Server. mit

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  11. proslijedio/la je Tweet
    5. velj
    Odgovor korisniku/ci

    ICYMI: some more details on the Maastricht cyber attack. Ransom confirmed as 30 bitcoin (~€200k at time of payment)

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  12. proslijedio/la je Tweet
    5. velj

    Ransomware 2.0 (literally). Hackers compromise five US law firms and demand two ransoms from each firm: one to restore access to the data, one to delete their copy instead of selling it.

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  13. proslijedio/la je Tweet
    4. velj

    The DEFCON 27 video of my presentation on "Purple Teaming ICS Networks" is now online. An Purple Team is a collaborative assessment that reduces operational risk, validates coverage of detection and builds trust between teams:

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  14. proslijedio/la je Tweet
    4. velj

    *SERVICE-TWEET* Ich freue mich Euch mitteilen zu können, dass Version 2.0 der Zusammenstellung "Aktive Cyberabwehr/ Hackbacks in Deutschland - Hintergrundinformationen und Analysen" online ist. Jetzt auch mit Unterüberschriften. Link:

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  15. proslijedio/la je Tweet
    3. velj

    Dragos initially learned of a new variant, “Snake” or “EKANS,” on January 6, 2020 that has the functionality to forcibly stop a number of processes, including multiple items related to operations. Read the full, public report here:

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  16. proslijedio/la je Tweet
    30. sij

    My write-up on how I tracked down an alleged member of REvil group utilizing methods. If you enjoyed reading this please share it and I will work hard to create more write-ups like this!

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  17. proslijedio/la je Tweet
    3. velj

    TeamViewer stored user passwords encrypted, not hashed, and the key is now public

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  18. proslijedio/la je Tweet
    3. velj

    💡The European electricity mix in January 2020, from the TP data. The electricity came from: 26.3% nuclear, 18.5% from gas, 17% wind power and 16.2% hydro-power. Exactly one year before coal was at the 3rd place with 17.7%!

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  19. proslijedio/la je Tweet
    2. velj

    BPol + Backdoor = (Mein) Wort des Tages: Die Hackbackdoor.

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