Facebook stored millions of Instagram passwords in plain text
"...various errors seem to have caused Facebook’s systems to log some passwords in plain text since as early as 2012."1) As a software engineer I can't imagine how such errors could possibly have entered production code accidentally, especially after code review. If precise details of these errors are released I am open to have my mind changed.2) Even if it did, I can't see how it would take facebook's tens of thousands of engineers 7 years to find this "bug".