WeCom says a hacked third-party add-on made business accounts send porn spam; affected accounts forced offline

On Oct. 24, WeCom accounts tied to several brands were seen sending suspected porn-spam links to customers. The WeCom security team said a third-party add-on service had been compromised, hitting accounts that used it. It forced those accounts offline, blocked the links, and said it will keep removing multi-login and bulk-control tools and penalize users.

Written by dalao.ai: the title, summary and why it matters are our own words. The original reports are the record; their publishers keep authorship.