Security Updates give the most recent protection content for Norton Internet Security, which protect networked critical systems and remote and mobile users from unwanted network intrusions and hackers, as well as from viruses, Trojans, and worms.

To download and install the Security Update 498 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 498 is 20111119.031 and its description was last modified on November 21, 2011 2:54:03 PM PST.

Security Update 498 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Malicious Toolkit Iframe Injection 9:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.