You likely have an instance of "rouge security software". Despite the name, it only pretends to be security software. From Wikipedia:

Rogue security software is a FraudTool (a form of Internet fraud using computer malware) that deceives or misleads users into paying money for fake or simulated removal of malware (so is a form of ransomware)—or it claims to get rid of malware, but instead introduces malware to the computer.

Unless this message is coming from a tool that you know and trust to reliably treat malware infections, do not follow the link, and remove the software, if you can. If the software came from the Google Play store, report it for investigation.

You likely have an instance of "rogue security software". Despite the name, it only pretends to be security software. From Wikipedia:

Rogue security software is a FraudTool (a form of Internet fraud using computer malware) that deceives or misleads users into paying money for fake or simulated removal of malware (so is a form of ransomware)—or it claims to get rid of malware, but instead introduces malware to the computer.

Unless this message is coming from a tool that you know and trust to reliably treat malware infections, do not follow the link, and remove the software, if you can. If the software came from the Google Play store, report it for investigation.