Ransomware attacks have been reported by several cybersecurity firms to be on an upward trajectory over the past few months, SecurityWeek reports.
More than 500 ransomware attacks were deployed in July, which was 153% higher than last year and 16% higher than the previous month, according to an NCC Group report, which attributed the significant increase in ransomware attack prevalence to the widespread Cl0p ransomware attack involving the exploitation of the MOVEit vulnerability.
Meanwhile, a BlackFog report revealed that ransomware attack volumes last month were the highest over the past four Julys although most attacks remained undisclosed by victims.
Moreover, organizations listed on ransomware leak sites were noted by a CyberMaxx study to have reached a record-high 1,400 during the second quarter, compared with 850 in the first quarter.
On the other hand, ransomware victims were noted by a Guidepoint Security report to have decreased last month if Cl0p MOVEit hack victims are excluded, although active ransomware operations grew from 28 to 36 between June and July, while a SonicWall report showed a 41% year-over-year decline in ransomware delivery attempts for the first half of 2023.
The Philippine Health Insurance Corporation, which manages the country's universal healthcare system, had its websites and portals disrupted by a Medusa ransomware attack last week, from which it is struggling to recover, reports The Record, a news site by cybersecurity firm Recorded Future.
Japanese multinational conglomerate Sony has begun an investigation into an alleged cyberattack, which was reported to have resulted in the exposure of 3.14 GB of data in hacking forums, amid the emergence of different attackers claiming to be behind the hack, according to BleepingComputer.
Threat actors have leveraged the ZeroFont phishing attack technique, which initially involved the insertion of hidden characters or words in emails to evade security detection systems, to modify message previews as shown on Microsoft Outlook and other email clients, BleepingComputer reports.