Dear Ashley Madison user. I know everything about you. Pay up or else.

Four years after hackers dumped the intimate details of 32 million Ashley Maddison subscribers, criminals have revived an extortion scheme that targets people who used the dating website to cheat on their partners.Further ReadingAshley Madison hack is not only real, it’s worse than we thoughtIn the past two weeks, researchers have detected “several hundred” emails that threaten to air those intimate details to the world unless the former subscribers’ pay a hefty fee.“I know everything about you,” one of the emails, dated January 15, says. Around the same time, there were reports of two Ashley Madison members dying by suicide after their data was included in the dump.The emails targeting Ashley Madison users are part of a broader wave of so-called sextortion demands that threaten to air embarrassing secrets unless recipients pay a ransom. A message displayed on employees’ screens informed them of the hack and threatened to release email addresses, credit-card data, and other subscriber information unless executives immediately and permanently took down the Ashley Madison website.A week later, after Ashley Madison failed to comply, people identifying themselves as members of a group calling itself Impact Team released details for two Ashley Madison members.