
Final Fantasy 14 has a major problem in its code. Back in January, it was discovered that Square Enix's efforts to improve their blacklist system just made it terrible in an entirely different way.
Essentially, the new system beamed account IDs straight to other clients, rather than player IDs. These IDs, easily scrapable by basic software, allowed bad actors and stalkers to gain a full list of their target's alts, allowing for easier harassment. While mods like the controversial PlayerScope helped collect and present this information, they were just the tip of an iceberg that had been slowly growing since the expansion's release.