Cybercriminals have exploited Atlassian Jira Cloud to launch large-scale spam campaigns targeting investors and government entities. These attacks abused the platform’s trusted email system from late December 2025 to late January 2026, bypassing filters via strong domain reputation.​ Threat actors created disposable Jira Cloud instances using free trial accounts with randomized names, hosted on legitimate […] The post Cybercriminals Exploit Atlassian Cloud For Large-Scale Spam Campaigns Targeting Investors appeared first on Cyber Security News.