Slack Technologies sure is making headlines. The San Francisco maker of an online workplace collaboration tool -- which has drawn attention over its $2.76 billion market valuation -- revealed a major hack of its user database Friday, releasing email addresses and potentially phone numbers of its 500,000 users.
Slack reported that hackers infiltrated its central user database, which includes email addresses and anything else added to users’ profiles, such as phone numbers or Skype IDs. Passwords, however, are encrypted in the database.
The hack reportedly took place over four days in February. Slack did not notify all users until publishing a blog post Friday morning and later emailing all users.