How do I Enable Mac OS X Firmware Password Protection is a common issue that arises for power MAC computer users. This article highlights how you can enable and change your MAC's firmware configuration. A warning, however, is that when you alter your open firmware configuration in a manner that is not explicitly endorsed by Apple may damage your machine's logic board. Repair's for issues created by these unsupported configuration changes are not covered under the terms of any of the Apple support agreements.
For years, Macintosh users did not have to worry about the threat of computer malware as it was all targeted towards computers running the Windows operating System. Things have changed now. The DNS Changer Trojan Horse became known in 2008 as a Trojan Horse that attacks Macs running OS-X. The DNS Changer Virus continues to evolve and remain a persistent threat to MaC users.