Porto Seguro — one of Brazil's largest insurance groups, with around 10 million clients, over 13,000 employees, and an annual revenue of $5.1 billion — has fallen victim to a ransomware attack.

The creators of the notorious TrickBot malware have signed two new affiliates, a sure sign that we can expect to observe more attacks using this ransomware in the near future. Microsoft estimates that TrickBot has already infected over 3 million devices.

Last month, we shared the news with you about Pacific City Bank being ransomed. Since then, the bank has publicly disclosed the attack.

A previously unrecognized Linux malware family has been found to be targeting organizations in Southeast Asia. The threat is being tracked as FontOnLake or HCRootkit.

Japan-based tech manufacturer Olympus suffered a cyberattack on October 10. This marks their second such incident in as many months.

Microsoft's Patch Tuesday for October fixes four zero-days and 81 flaws, including some for Microsoft Edge. OpenOffice and LibreOffice are each receiving three separate patches for similar issues.

Scottish engineering company Weir Group, who employs over 11,000 people in 50 countries, has disclosed that they are still fighting to fully recover from of a ransomware attack that happened in September.