{"id":"f661ef21-c7a3-4b1f-b43b-050531d8476a","url":"https://www.theregister.com/security/2026/09/04/ascii-smuggling-isnt-just-an-ai-security-risk/5294595","domain":"theregister.com","outlet":{"name":"Theregister","country":null,"cred":null,"lean":null,"curated":false},"title":"ASCII smuggling isn't just an AI security risk","plainHeadline":"Massive phishing campaign used invisible Unicode to split keywords","rewrite":{"model":null,"at":null},"summary":["Microsoft detected a phishing campaign using invisible Unicode tag characters.","Campaign peaked at over 2.37 million messages in late February.","Emails showed a weekday-on, weekend-off pattern with gradual decline.","Attackers split financial keywords with non-rendering characters to evade filters.","Researchers urge normalization and tokenization to strip invisible code points."],"topics":["Cybersecurity","Finance"],"lang":"eng","publishedAt":"2026-09-04T19:23:25.000Z","ingestedAt":"2026-09-04T22:02:35.249Z","story":null}