CDK Global Ransomware: US Car Dealerships Run on Pen and Paper

On June 19, 2024, ransomware hit CDK Global’s dealer management platform — the operational nervous system of ~15,000 North American dealerships — and a second strike during recovery extended the outage for weeks while finance desks, service bays and OEM ordering reverted to paper and fax. This account covers the June 19/22 double-hit timeline, the billion-dollar industry loss estimates, why DMS lock-in made fallback manual rather than competitive, and the concentration-risk docket the incident left for every regulator to cite.

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Brain Cipher vs Indonesia’s Data Centers: A National Ransomware Reckoning

In June 2024, the Brain Cipher crew — running a LockBit 3.0 builder clone — encrypted Indonesia’s National Data Center, disrupting 200+ government services from immigration to licensing, then released a decryptor with an apology-flavored admission that extortion failed, then hit again during recovery. This account covers the copycat-crew economics behind the operation, why one shared-tenant data center meant national outage, the second-encryption lesson about persistence, and the segmented-architecture rebuild Indonesia promised next.

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LockBit Takedown: Operation Cronos and Its Awkward Aftermath

February 2024’s Operation Cronos seized LockBit’s infrastructure across a dozen countries — and then the leaks showed how long the FBI had been inside. This account covers the covert access, the sting timing driven by UK hospital targeting, the servers and affiliate accounts taken down, the hurried rebrand to LockBit 4.1, the affiliate diaspora to RansomHub and Akira, and the awkward questions the takedown’s trolling raised about reading crime statistics.

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JetBrains TeamCity Auth Bypass: Build Servers as Front Door

March 2024’s CVE-2024-27198 let unauthenticated attackers mint admin accounts on self-hosted TeamCity CI servers, converting every connected build agent into attacker-controlled execution holding source, secrets and signing keys. This piece covers the alternate-path authentication bypass, the companion path traversal, the ransomware crews that queued within days, and the year’s hard-learned rule that build infrastructure deserves domain-controller-grade security.

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ConnectWise ScreenConnect Auth Bypass: An Instant RCE Wave

February 2024’s CVE-2024-1709 let anyone add administrative accounts to self-hosted ScreenConnect servers — a setup-wizard path traversal that converted remote-support consoles into ransomware deployment platforms within 72 hours of disclosure. This account covers the twinned vulnerabilities, why MSP-hosted instances multiplied the blast radius across client fleets, the observed ransomware sequences, and the hard questions RMM vendors faced about unauthenticated wizard endpoints.

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LockBit, CitrixBleed, and the ICBC Treasury Hack

When LockBit hit ICBC’s US broker-dealer on 9 November 2023, Treasury-market connectivity went dark and manual settlement took over for days. The entry path traced to CitrixBleed session tokens stolen before the October patch and never invalidated — exactly what CISA’s Emergency Directive 23-08 had warned. LockBit claimed a roughly $9 million ransom demand, never verified. The post walks the token-replay kill chain, the disclosure-era aftermath, and the defensive lesson that remediation includes revocation.

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