September BlackMatter ransomware attack
https://www.bleepingcomputer.com/news/security/olympus-us-systems-hit-by-cyberattack-over-the-weekend/
Olympus, a leading medical technology company, was forced to take down IT systems in the Americas (U.S., Canada, and Latin America) following a cyberattack that hit its network Sunday, October 10, 2021.
"Upon detection of suspicious activity, we immediately mobilized a specialized response team including forensics experts, and we are currently working with the highest priority to resolve this issue," Olympus says in a statement published today, two days after the attack.