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... In an alert published Monday, the US government's cyber agency said it's tracking multiple miscreants that are using a mix of phishing, bogus QR codes, malicious app impersonation, and, in some cases, full-blown zero-click exploits to compromise messaging apps which most people assume are safe.

The agency says the activity it's seeing suggests an increasing focus on "high-value" individuals -- everyone from current and former senior government, military, and political officials to civil society groups across the US, the Middle East, and Europe. In many of the campaigns, attackers delivered spyware first and asked questions later, using the foothold to deploy more payloads and deepen their access. ...