Trust Onion

Trust Onion app uses rotating codewords to verify callers and messages

Trust Onion◆ is a free app for macOS, iOS and Android that lets trusted groups verify each other using three rotating codewords. It also offers signed selfies, message checks and callback requests. The reviewer tested the iPhone app with an older user, and the article notes that Cisco Talos◼ has documented attackers posing as others, though the text is truncated before details.