U
UXSS
What it is UXSS (Universal Cross-Site Scripting) is a browser bug that lets bad code run inside your browser, not just on one weak website. When this happens, the code can ignore the normal rule that keeps one site from peeking at another. Result: ...
URL Redirection Attack
What it is A URL redirection attack tricks your browser into leaving a real site and loading a fake one. The attacker slips a redirect into a link or page (or abuses a site’s “open redirect” bug), so when you click, you’re quietly sent to a malicious ...
URL Hijack
What it is URL hijacking is when scammers get you to visit the wrong website on purpose. They register look-alike addresses for popular sites (like amaz0n.com or gooogle.co) or set up sneaky redirects, so a small typo or a tricky link sends you to a ...
Unwanted Program (PUP or PUA)
What it is An unwanted program is software you did not really ask for that sneaks in with something else or uses tricks to get installed. It is not always outright malware, but it can change your browser, show ads, collect data, add toolbars or ...
UEFI Rootkit
What it is A UEFI rootkit is malware that hides inside a computer’s firmware - the low-level code that starts your PC before Windows loads. Because it lives in the UEFI (which replaces old BIOS), it can run first at every boot, stay hidden from ...
UBA (User Behavior Analytics)
What it is User Behavior Analytics (UBA) looks at how people normally use accounts and devices, then flags weird activity. Think “baseline of normal” for logins, file access, and app use. If something suddenly looks off - like midnight logins from a ...