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UK small businesses face surge in cyberattacks as BT acts

UK small businesses face surge in cyberattacks as BT acts

Securitybrief •[email protected] (Sean Mitchell) • October 31, 2025

Cybercriminals have significantly increased malicious scans on British business devices over the past year, according to data released by BT.

BT's data reveals that networked devices at UK organisations, including company laptops, mobile phones and IoT equipment such as office security cameras, now face over 4,000 automated scans daily by hackers searching for vulnerabilities. The research states that these scouting raids have risen by 300% in the past 12 months, as cyber attackers use automated bots to probe business networks for weaknesses.

SMEs under increased threat

The company found that professional services, including accountancy, legal and consultancy firms, are the most frequent targets of ransomware attacks, with retail businesses close behind. The hospitality and leisure sector ranks as the third-largest victim group, with criminals seeking to access guest data and payment information.

The findings indicate that ransomware attacks hit smaller businesses especially hard, particularly those with fewer than 25 employees, which are identified as the most commonly targeted group. These businesses often struggle with limited resources devoted to cybersecurity and can be more prone to critical breaches caused by both hardware and human error.

BT and CrowdStrike launch AI-powered antivirus

In response, BT has announced a partnership with CrowdStrike to provide a new AI-powered antivirus service for small businesses. The product, BT Business Antivirus Detect and Respond, will use CrowdStrike's Falcon Go technology to detect and stop cyber threats before breaches can occur. The service will be available exclusively through BT in the UK.

This AI-powered approach comes as research from CrowdStrike shows just 11% of small businesses currently deploy AI in their cybersecurity, despite increasing use of artificial intelligence by hackers to conduct and scale attacks. The UK's National Cyber Security Centre previously highlighted that "keeping pace with frontier AI capabilities" will be crucial in maintaining resilience against upcoming threats over the decade.

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