Quick Takeaways
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BIOS attacks target the earliest stage of startup: Firmware malware can run before the operating system, evade many security tools, and survive a drive wipe or reinstall.
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Firmware failure can halt work even without an attack: A failed integrity check or interrupted update can leave a laptop unable to boot, disrupting employees and creating recovery costs. SMB breach losses can reach 7% of revenue, with business interruption a growing source of loss.
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Detection alone isn’t enough—recovery matters: NIST’s firmware-security goals include protection, detection, and fast, secure recovery.
- Dual BIOS adds a built-in fallback: A protected backup firmware chip can restore a laptop if the primary BIOS is corrupted, often without network access or help-desk intervention. The ASUS ExpertBook A7 is presented as an SMB laptop with this feature and event logging.
Underlying Problem
The CSO Online article explains that BIOS attacks or interrupted firmware updates can corrupt a laptop’s startup system, leaving it unable to boot. Because BIOS code runs before the operating system, some threats may evade antivirus tools and persist even after a drive is erased. The resulting downtime can disrupt work, especially for small and midsize businesses and their remote employees.
To reduce that risk, the article describes dual BIOS technology, which keeps a protected backup copy of a laptop’s firmware. If the primary BIOS fails verification, the system can restore itself from the backup, helping employees resume work without waiting for network access or IT support. The report highlights the ASUS ExpertBook A7 as a laptop with this feature; it discusses a security risk and a safeguard, rather than reporting a specific attack.
Critical Concerns
A BIOS failure can happen to any business, not just a large enterprise. A botched firmware update, power loss, hardware fault, or targeted attack can leave a laptop unable to start—or, more dangerously, undermine the trustworthiness of the device before the operating system loads. Dual BIOS provides a backup firmware image that may help restore a system, although it is not a complete defense against every attack. Without that recovery path, employees can lose access to their tools, work can stall, and IT teams may face costly repairs or lengthy device replacements. Moreover, missed deadlines, disrupted customer service, and exposure of sensitive information can turn one laptop failure into a wider business problem.
Possible Remediation Steps
Timely remediation matters because Dual BIOS can help restore firmware after corruption, but it does not prevent compromise or replace prompt patching.
Mitigation Steps
- Identify: Inventory laptop models, BIOS versions, Dual BIOS capabilities, and vendor support status.
- Protect: Apply verified BIOS/UEFI updates promptly; enable Secure Boot, TPM protections, and firmware passwords where supported.
- Validate: Confirm recovery behavior and update procedures against the manufacturer’s guidance; test changes on a small device group before broad deployment.
- Detect: Monitor vendor security advisories and alerts for unexpected firmware changes or failed integrity checks.
- Respond and recover: If firmware compromise is suspected, isolate the laptop, follow the vendor’s Dual BIOS recovery process, reapply trusted firmware, and verify system integrity before reconnecting it.
- Replace when necessary: Retire or replace unsupported devices, or models lacking a trustworthy recovery path, according to risk and business needs.
Advance Your Cyber Knowledge
Discover cutting-edge developments in Emerging Tech and industry Insights.
Learn more about global cybersecurity standards through the NIST Cybersecurity Framework.
Disclaimer: The information provided may not always be accurate or up to date. Please do your own research, as the cybersecurity landscape evolves rapidly. Intended for secondary references purposes only.
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