Ransomware assaults elevated by 63% year-over-year within the second quarter of 2025, with a complete of 276 publicly disclosed incidents, based on a brand new report from BlackFog.
Notably, there have been much more ransomware assaults that weren’t publicly disclosed. The researchers notice, “The figures additionally reveal that the size of hidden exercise stays important, with 80.9% of all ransomware assaults going unreported. Throughout Q2 there have been 1,446 undisclosed ransomware assaults marking a 19% enhance in comparison with the identical quarter in 2024.”
Of the publicly recognized ransomware assaults, the healthcare sector was the toughest hit, with 52 assaults final quarter. Moreover, assaults towards the retail business surged in comparison with the primary quarter of 2025.
“The retail sector recorded its highest ever Q2 assault volumes, with UK retailers particularly bearing the brunt of high-profile ransomware assaults,” BlackFog writes.
“The variety of publicly disclosed ransomware incidents on this sector jumped by 58% in comparison with Q1 2025. The Development, Hospitality, and Arts and Leisure sectors additionally reported the very best ever Q2 assault volumes. Throughout the board, the usage of knowledge exfiltration remained constantly excessive, with 95% of publicly disclosed assaults involving the theft of delicate info.”
The researchers noticed dozens of ransomware teams in Q2 2025, with the Qilin gang accounting for essentially the most assaults.
“Amongst 53 energetic ransomware teams, the Qilin ransomware gang took the lead as essentially the most energetic, chargeable for 10% (28) of disclosed assaults and 15% of these revealed on darkish net leak websites,” BlackFog says. “Earlier this 12 months, CISA issued a proper warning after Qilin struck excessive profile targets within the UK and US with the group labelled a significant danger to crucial infrastructure.”
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BlackFog has the story.
