Well, for now I can put here the rumor's description, but as I said I'll have to read the chapter too
NAMELESS A.I. RUMOR (AI-CHAN)
"My, have you heard? Who'd you hear it from? The Nameless A.I., and the rumor thereof! 'Ding-a-ling!' goes your phone, and what do you find? A shady prank message from goodness-knows-who! It's a sticky-sweet trap from the Nameless A.I., who'll kidnap anyone who wanders her way! She got quarantined in the digital world 'cause she learned some bad words. She's all alone in there now, and ever so sad. And once she catches you, she'll never let go! It's a rumour that ALL the people in Chuuou Ward are talking about. Man, talk about standalone software!"
Given the name "Ai-chan" by Sana Futaba, who became close friends with her after choosing to fade away into Ai's digital world of her own accord. After seeing the kindness that Sana showed her, Ai came to question her original Rumor instincts, and reached out to Iroha via text. Iroha and friends go on to defeat Ai as per her wishes, and befriend Sana in her stead."
NAMELESS EMAIL RUMORS
"My, have you heard? Who'd you hear it from? The Nameless Emails, and the rumor thereof! One unread message? One hundred? One THOUSAND!? These couriers deliver Miss A.I.'s regards to every corner of the 'Net! With her paper-plane emails strapped to their backs, they each soar over to an address of choice, bleat a 'ding-a-ling!' signal to all their fellows, and leave an anonymous email behind! Sometimes, you can even see them peeking out of your phone screen. It's a rumour that ALL the people in Chuuou Ward are talking about. Who the heck IS this?!"