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To make Medium work, we log user data. By using Medium, you agree to our Privacy Policy, including cookie policy. Homepage Open in app Sign inGet started DOUBLEPULSAR CYBERSECURITY FROM THE TRENCHES, WRITTEN BY KEVIN BEAUMONT. Cybersecurity NewsRansomware ThreatsThreat HoneypotsContactNewsletter FollowFollowing BPFDoor — an active Chinese global surveillance tool BPFDOOR — AN ACTIVE CHINESE GLOBAL SURVEILLANCE TOOL Recently, PwC Threat Intelligence documented the existence of BPFDoor, a passive network implant for Linux they attribute to Red Menshen… Kevin Beaumont May 7 Multiple threat actors, including a ransomware gang, exploiting Exchange ProxyShell vulnerabilities MULTIPLE THREAT ACTORS, INCLUDING A RANSOMWARE GANG, EXPLOITING EXCHANGE PROXYSHELL VULNERABILITIES These vulnerabilities are worse than ProxyLogon, the Exchange vulnerabilities revealed in March. Kevin Beaumont Aug 21, 2021 #HiveNightmare aka #SeriousSAM — anybody can read the registry in Windows 10 #HIVENIGHTMARE AKA #SERIOUSSAM — ANYBODY CAN READ THE REGISTRY IN WINDOWS 10 This is the story of how all non-admin users can read the registry — and so elevate privileges and access sensitive credential information… Kevin Beaumont Jul 20, 2021 Kaseya supply chain attack delivers mass ransomware event to US companies KASEYA SUPPLY CHAIN ATTACK DELIVERS MASS RANSOMWARE EVENT TO US COMPANIES Kaseya VSA is a commonly used solution by MSPs — Managed Service Providers — in the United States and United Kingdom, which helps them… Kevin Beaumont Jul 2, 2021 Latest stories The hard truth about ransomware: we aren’t prepared, it’s a battle with new rules, and it hasn’t… THE HARD TRUTH ABOUT RANSOMWARE: WE AREN’T PREPARED, IT’S A BATTLE WITH NEW RULES, AND IT HASN’T… I’ve talked about ransomware and extortion attacks on organizations for about a decade. I recently spent a year at Microsoft in Threat… Kevin Beaumont Jun 8, 2021 ROOT BRIDGE — HOW THOUSANDS OF INTERNET CONNECTED ANDROID DEVICES NOW HAVE NO SECURITY, AND ARE… Kevin Beaumont DETECTING DNS CVE-2020–1350 EXPLOITATION ATTEMPTS IN AZURE SENTINEL Kevin Beaumont NO, CLOUDFLARE DIDN’T GET HACKED Kevin Beaumont #OLEOUTLOOK - BYPASS ALMOST EVERY CORPORATE SECURITY CONTROL WITH A POINT’N’CLICK GUI Kevin Beaumont HIJACK OF AMAZON’S INTERNET DOMAIN SERVICE USED TO REROUTE WEB TRAFFIC FOR TWO HOURS UNNOTICED Kevin Beaumont I’M AN EXPERT AT CORONAVIRUS HEALTHCARE AND I’M HERE TO EXPLAIN TO YOU HOW TO FIX THIS. Kevin Beaumont Email me! kevin.beaumont@gmail.com Security Big Game Ransomware being delivered to organisations via Pulse Secure VPN BIG GAME RANSOMWARE BEING DELIVERED TO ORGANISATIONS VIA PULSE SECURE VPN A security vulnerability in a popular enterprise remote access product is being used to deliver ransomware into organisations, with… Kevin Beaumont Jan 4, 2020 DoublePulsar Cybersecurity from the trenches, written by Kevin Beaumont. Opinions are of the author alone, not their employer. More information Followers 7.1K Elsewhere Follow me on Twitter @GossiTheDog Find me on LinkedIn About DoublePulsarLatest StoriesArchiveAbout MediumTermsPrivacy