Phosphorus, a mineral that helps keep us healthy, can be found in everything from our food to our toothpaste.

REDMOND, Wash. – Microsoft says Iranian hackers have posed as conference organizers in Germany and Saudi Arabia in an attempt to break into the email accounts of “high-profile” people with spoofed invitations. The tech company said Wednesday it detected attempts by the hacking group it calls Phosphorus to trick former government officials, policy experts and academics. “We believe Phosphorus is engaging in these attacks for intelligence collection purposes,” said Tom Burt, Microsoft's security chief, in a prepared statement. Wednesday’s announcement refers to the hacking group as an “Iranian actor” but doesn't explicitly tie it to the Iranian government. Microsoft calls it Phosphorus, while others call it APT35 or Charming Kitten.