As regards this Tuesday's Microsoft patch day, warnings were issued concerning newly found "critical" security flaws in Windows. The flaws could be used to allow attackers to take control of a computer. As always, we recommend updating your Windows installation with all patches available.

One of the critical vulnerabilities appears in some versions of Internet Explorer that could make it possible for an attacker to use the Web browser to take total control of a PC.

The other two "critical" vulnerabilities were in the Windows operating system.