Cybercriminals actively use the Your Account Was Hacked email scam as a way to scam users and get ransom amounts from them. As an unfortunate victim of such attacks, you will receive an email stating that your email address is hacked/infected with malware. They will also say that they have recorded a compromising video which will be leaked along with personal data/details unless you pay the hackers. It is one of the text-book email scams that happen to many people every year. Keep in mind that the scammers can demand anything as ransom and you get compelled to comply with them, otherwise you risk losing your sensitive personal data.