Twitter hacker sentenced to prison for 2020 breach.

Joseph James O'Connor, a British hacker responsible for the 2020 Twitter breach, has been sentenced to five years in prison after pleading guilty to four counts of computer hacking, wire fraud, and cyberstalking. O'Connor was part of a group that broke into dozens of high-profile Twitter accounts, including those of Apple, Binance, Bill Gates, Joe Biden, and Elon Musk, to spread cryptocurrency get-rich-quick scams. The hackers used phone-based social engineering techniques to trick Twitter employees into granting them access to Twitter's network. The breach prompted Twitter to improve its cybersecurity controls, introducing hardware security keys for its employees to prevent future phishing attempts.