5/9/2023 0 Comments Uninstall truecrypt linuxWhen the PC is off, a small battery, typically mounted somewhere on the mainboard, provides the necessary trickle of power to keep the RAM alive. This BIOS RAM needs constant electrical power to maintain its contents. In many PCs, the BIOS includes a small amount of RAM that’s used to store custom BIOS settings - including pre-boot passwords. Here are the potential issues with BIOS-based passwords. UEFI PCs can be more resistant to tampering, depending on system design.) (Note: For this story, BIOS is shorthand for both classic BIOSes and the newer Unified Extensible Firmware Interface system-boot firmware. Used together, the two methods are far better than either one alone. That’s why I discussed a second type of password security in that article. Yes, most BIOS-controlled passwords can be bypassed by resetting the BIOS. I assume that removing the battery would reset the BIOS to default settings - sans passwords. But one day, the techie at my local PC shop said he could defeat the password by removing the on-board battery. “Fred: As I recall, you addressed BIOS-level passwords years ago.Plus: Using encrypted data with 7-Zip, KVM switch weirdness, and curing a “User profile cannot be loaded” failure.Īfter reading the May 14 Top Story, “Better data and boot security for Windows PCs,” reader Frederick Barrow wrote this: LANGALIST PLUS The problem with BIOS-level passwordsīIOS-level passwords can be defeated by resetting the BIOS, but a second level of security can still keep your files safe.
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