Top 10 Breaches of the Week

This weekly after-action report summarizes multiple recent cybersecurity incidents across healthcare, government, finance, cloud providers, retail and education — covering large-scale data exposures (including multi-million-record healthcare and national-register leaks), ransomware outages and extortion, active exploitation of AhsayCBS leading to RCE and Monero miner deployment, a cloud-region outage affecting hundreds of customers, and various portal/messaging compromises — and highlights control gaps, response actions, and mitigation takeaways for defenders.