The Perception Point Advanced Browser Security extension protects your browser against web threats, such as phishing/malicious websites.
Links in phishing emails (or from any other source) can trick you into providing your credentials or downloading and installing malicious software like ransomware.
When you access such a malicious website, this browser extension will leverage the Perception Point detection engines to deeply inspect it. If the content is found to be malicious, the extension can block access to prevent harm.