Encryption Drops While Extortion-Only Attacks Surge

Ransomware remains a persistent threat to organisations worldwide, but new findings suggest cybercriminals are shifting their methods. According to the latest report by Sophos, only half of ransomware attacks involved data encryption this year, a sharp decline from 70 per cent in 2023.
 

The report suggests that improved cybersecurity measures may be helping organisations stop attacks before ransomware payloads are deployed. However, larger organisations with 3,001 to 5,000 employees still reported encryption in 65 per cent of attacks, possibly due to the challenges of monitoring vast IT infrastructures. 

As encryption-based tactics decrease, attackers are increasingly relying on extortion-only methods. These attacks, which involve threats to release stolen data without encrypting systems, have doubled to 6 per cent this year. Smaller businesses were disproportionately affected 13 per cent of firms with 100 to 250 employees reported facing such attacks, compared to just 3 per cent among larger enterprises.
 

While Sophos highlighted software vulnerabilities as the most common entry point for attackers, this finding contrasts with other industry data. Allan Liska, a ransomware expert at Recorded Future, said leaked or stolen credentials remain the most frequently reported initial attack vector. Sophos, however, reported a drop in attacks starting with credential compromise from 29 per cent last year to 23 per cent in 2024 suggesting variations in

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