[$] Trojan Source: tricks (no treats) with Unicode

A new security vulnerability that was disclosedon November 1 has some interesting properties. "Trojan Source", as it has beendubbed, is effectively an attack on human perceptions, especially as theyare filtered through the tools used for source-code review. While thespecifics of the flaw are new, this kind of trickery is not completelynovel, but Trojan Source finds another way to confuse the humans who arein the loop.