Many car thieves know how to unplug a car alarm's battery, which will silence it. Always hook your car alarm up to a backup battery and/or invest in a hood lock.Be wary of older, cheaper car alarms, flexible-circuit alarms, and single-stage sirens, which are too easily triggered, and may come at the expense of your neighbors' friendship.When a threat is detected by the sensors, a siren activates (at over 120 dBs), alerting the car's driver and everyone else within earshot. Car alarms feature electronic sensors designed to activate when a vehicle is breached: unauthorized entry, breaking of glass, sudden movement, and perimeter violations. So, be sure to put a sticker in the window, on both sides, proudly proclaiming you have a car security system activated. Sometimes drawing a potential thief's attention to the fact that your car has an alarm system is enough to deter them. These are the most visually effective anti-theft devices. If you wanna try and catch the people, Prey is your best bet.That doesn't make any sense.Invest in a car alarm. Prey is also really cool from what i've heard. Seeing as the OP is looking to remotely wipe the drive, I would think that they would also want to make sure the environment being booted into was trusted as well (and thus if SecureBoot was available in the UEFI that OP would want to use it) and I also wouldn't be surprised if they also enabled full disk encryption on their laptops in addition to that.Įdit: mixed OP up with junyus, corrected post accordingly For older OSes, the WPBT will be ignored.Īlso, Absolute Software themselves states that their Absolute Secure Drive (the software solution responsible for wiping information from the drive as opposed to simply tracking the system like Computrace does) does not currently support "Secure Boot" so maybe that's what jenyus was referring to when referring to UEFI computers (source: Opens a new window, page 296). If you are running Win8 and the HDD is encrypted, publish WPBT. If you are running Win7 or an older OS and the HDD is not encrypted, use the older method (changing the OS file). In the initial version, the WPBT simply contains a physical address pointer to a flat, Portable Executable (PE) image that has been copied to physical memory. ![]() The binary handoff medium is physical memory, allowing the boot firmware to provide the platform binary without modifying the Windows image on disk. The WPBT is a fixed Advanced Configuration and Power Interface (ACPI) table that enables boot firmware to provide Windows with a platform binary that the operating system can execute. Preboot module support will fail when the OS partition or the hard drive is encrypted. However, this method can impact OS stability. This provides persistent support and prevents the malicious deletion of files from the system. ![]() The Absolute Computrace Preboot module writes to the hard disk if it detects the needed hard drive components are no longer present. That first article you link to doesn't seem to take into account that fact and kinda lumps BIOS and UEFI together as if they were the pretty much the same thing (they serve similiar functions, but not in the same manner).Īlso, I found this little nugget of information in a whitepaper on HP laptops that notes that UEFI systems with SecureBoot enabled that boot to encrypted partitions/drives don't "play nice" with Computrace without some specific modifications first (source: Opens a new window). Also, on an additional note, UEFI is designed to be a replacement for the older BIOS firmware interface not some feature as some may infer from your post (just wanted to make that clear in case someone thought otherwise). See links below:Ĭomputrace is not built into every BIOS, just the BIOSes of certain models of motherboards which are found primarily on mobile devices. If it didn't support UEFI, then they would pretty much go out of business. If you wanna try and catch the people, Prey is your best bet.That doesn't make any sense. We're using MaaS360 now, we like it and we use it for our phones. Their fine print says that it cant wipe the drive of a UEFI computer, so it was virtually worthless for our surface pro 3's. It might be a little overkill but I think it should meet your needs:
0 Comments
Leave a Reply. |