2020 Twitter account hijacking
On July 15, 2020, between 20:00 and 22:00 UTC, 130 high-profile Twitter accounts were compromised by outside parties to promote a bitcoin scam. Hackers used social engineering against Twitter employees to gain access to administrative tools, allowing them to post the tweets directly.
Source: Wikipedia — 2020 Twitter account hijacking (CC BY-SA 4.0)