WhatsApp has claimed that some users were “possibly compromised” by spyware, according to a report by The Guardian. The Meta-owned messaging app went on to allege that nearly 100 journalists and activists were targeted in the attack.

WhatsApp has accused Israeli spyware firm Paragon Solutions of targeting 90 users in more than two dozen countries. This spyware has particularly targeted attacks on journalists and other civil society members exploiting vulnerabilities on users’ devices.

WhatsApp says that civil society workers and journalists on its platform were the targets of hacks by the Israeli spyware company Paragon Solutions.