Thomas Brewster, writing for Forbes:
[…] German 18-year-old Linus Henze has uncovered a vulnerability affecting the latest Apple macOS that leaves stored passwords open to malicious apps. That could include logins for your bank website, Amazon, Netflix, Slack and many more apps. And even though this is a Mac-only bug, if you’re using the iCloud keychain, passwords synced across iPhones and Macs may also be in danger.
To make matters worse, it’s likely that no fix is in the works. Henze isn’t disclosing his findings to Apple, telling Forbes the lack of payment for such research was behind his decision to keep the hack’s details secret from the Cupertino giant.
This is bad and while I understand why he doesn’t want to disclose it to Apple, all MacOS users are susceptible to a security breach.