In March 2015, Slack announced that it had been hacked over the course of four days in February 2015, and that some number of users' data was compromised.
في مارس 2015 اعلن سلاك انه تم اختراقة خلال 4 ايام في شهر  فبراير 2015 وقد تسربت بيانات عدد من المستخدمين.