Cedric Pernet

Cedric Pernet

@cedricpernet.bsky.social

Senior Threat Researcher @ Proofpoint. Cybercrime / Cyberespionage aficionado. Has worked in several CSIRTs/CERTs. Metal & Rock dude, never enough guitars. Motorcycles fan. Wrote a book in French language on cyberespionage. Ex-Law Enforcement Officer

1.7K followers187 following97 posts

Cedric Pernet reposted

⚠️📢 Microsoft and Health-ISAC seized domains linked to YAM Store, CoGUI and Iron Man, services blamed for over 1 billion malicious messages targeting 75,000+ organizations. Listen/Read: hackread.com/microsoft-se... #Microsoft #Phishing #Cybercrime #Scam #Fraud

hackread.comMicrosoft Seizes YAM Store and Phishing Kit Domains Linked to 1B Malicious MessagesMicrosoft and Health-ISAC seize domains linked to YAM Store, CoGUI and Iron Man, services that enabled over 1 billion malicious messages since January 2026.

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Replying to @threatinsight.proofpoint.com

The CoGUI phishing kit has made Japan one of the most targeted countries in our data based on campaign volume. Threat actors use it to impersonate well-known Japanese and international companies, stealing usernames, passwords, and payment data.

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Microsoft and Japan's Police Begin Takedown of Scam Marketplace Services Microsoft's Digital Crimes Unit calls the marketplace YAM Store, CoGUI, and Iron Man; the volume is the point.

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Paragon says its spyware "system is rendered ineffective in about 12 hours" without updates, and I immediately think of how Russian authorities still found a way to use Cellebrite against an activist after the company cancelled the contract. www.wired.com/story/the-se...

wired.comThe Secrets of a US Spyware KingIn an exclusive interview with WIRED, Paragon Solutions CEO Andrew Boyd reveals the limits of the company’s promise to keep bad actors from abusing its powerful espionage tool.

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De l'efficacité de la coopération internationale : sur enquête initiée par les autorités 🇫🇷 le #FBI vient de mettre hors d'état de nuire les sites de la mouvance #NudeLeaksTeens 2 administrateurs interpellés en 🇫🇷 Les victimes invitées à se signaler

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#SaveTheDate 🚨🚨 If you're also wondering when the next #PIVOTcon27 is, remember: we're pivoting back to Málaga on 5–7 May 2027 🇪🇸🏖️ Registration opens soon! #CTI #ThreatIntel #ThreatResearch

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Replying to @archive.org

Web history disappears when it can’t be preserved. Today, many publishers are blocking the Wayback Machine from archiving parts of the public web, putting decades of digital history at risk. Tell publishers: don’t block the #WaybackMachine Sign the petition ➡️ www.savethearchive.com/newsleaders/

savethearchive.comTell New York Times, The Atlantic, and USA Today to keep the crucial work of journalists in the Wayback Machine!The news isn’t getting preserved in the Wayback Machine anymore because major media outlets are blocking it.

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New, by me: Scammers are abusing a legitimate internal Microsoft account, used for sending critical account alerts and MFA codes to users logging in, to send spam and scam emails. We first saw a flood of these emails last week, but anti-spam project Spamhaus says this has been going on for months.

techcrunch.comScammers are abusing an internal Microsoft account to send spam links | TechCrunchThe loophole allows spammers and scammers to send emails from a legitimate Microsoft email address typically used for sending genuine account alerts.

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For those who read our piece about crypto scam compound whistleblower Red Bull, I've verified that this is his real Bluesky account below. Thank for your incredible courage and all your work to achieve justice, @mohammadmuzahir02.bsky.social.

Mohammad Muzahir@mohammadmuzahir02.bsky.social

This wasn’t easy to share, but it mattered. Thanks to WIRED for documenting what I witnessed. It shows what’s happening behind online scam operations.

Cet article est un must-read qui nous éclaire sur les problématiques liées à l' #AdInt

Martin Untersinger@untersin.gr

De plus en plus d'entreprises vendent aux forces de l’ordre la possibilité de pister des utilisateurs de smartphones grâce à leurs données publicitaires. « Le Monde » a assisté à des présentations confidentielles de certains de ces outils. Enquête sur l'Adint, nouvelle frontière de la surveillance :

Common mistake for some CTI people: flagging a web provider's parking IP addresses as malicious. Please check carefully. This can lead to total nonsense attribution/pivots when unverified. #fail #ThreatIntelligence

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Brian Krebs identified the real-world identity of Rey, a key administrator of Scattered Lapsus$ Hunters, a hacking group blamed for dozens of high profile hacks. The hacker, identified as a Jordanian teenager, agreed to be interviewed after Krebs tracked him down and contacted his father.

krebsonsecurity.comMeet Rey, the Admin of ‘Scattered Lapsus$ Hunters’A prolific cybercriminal group that calls itself "Scattered LAPSUS$ Hunters" made headlines regularly this year by stealing data from and publicly mass extorting dozens of major corporations. But the ...

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NEW: Myanmar has made a big show of destroying the notorious KK Park scam compound—even publishing a video of a steamroller driving over thousands of phones But new images show buildings are only destroyed in one area. Hundreds are left untouched and experts say the crackdown is mostly propaganda

wired.comThe Destruction of a Notorious Myanmar Scam Compound Appears to Have Been ‘Performative’Myanmar’s military has been blowing up parts of the KK Park scam compound. Experts say the actions are likely for show.

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My thought of the day: all registrars should rethink their registration processes, so that automatic registration cannot be done that easily by cybercriminals. Some of them register hundreds of domains every day... #fightautomation #cybercrime