1M+ Emails Use Hidden Text to Dupe AI Security Filters

Over one million emails have used a technique called text salting (hiding extra characters or text that humans don't see but can confuse AI systems) to bypass AI-based email security filters, allowing phishing emails (messages designed to trick people into revealing sensitive information) to reach inboxes undetected. The research shows that AI and LLMs (large language models, which are AI systems trained on massive amounts of text) are surprisingly weak against this evasion method.