A Chicago story
The Tuesday thirty years of drawings became a ransom note
a principal at a 22-person architecture studio in the West Loop
It is 7:40 on a Tuesday in February and the principal is on the Kennedy, already late. The studio on Randolph opens in twenty minutes. Thirty years of drawings sit on the server in the back room: every school in the western suburbs the firm ever touched, the hospital wing in Streeterville, the loft conversions that made its name. Half the staff has never printed one.
At 8:05 the office manager opens an invoice from a lighting supplier the firm pays every month. The logo is right. The amount is right. The link asks her to sign in to view the PDF, so she does, because the last twelve invoices asked the same thing. Nobody at that desk did anything a careful person would not do.
By 8:20 a login from a country the firm has never billed is copying the drawing archive. At 8:31 the first folder locks. The renders for Thursday's client presentation go gray one thumbnail at a time.
The principal walks in at 8:40 to an engineer on the phone from Western Avenue, not a ransom note. The 2 a.m. backup restores four folders before lunch. Thursday's presentation happens on Thursday.
At 8:33 the protection agent on her workstation cuts the session and isolates the machine, and the copying stops at four folders out of nine hundred.
What changes the ending
- Offline, tested backups that restore the archive before the client presentation, not after the ransom deadline (CIS 11 Data Recovery).
- Phishing-resistant MFA on every mailbox, so a password typed into a fake invoice page is a dead end (CIS 6 Access Control Management).
- A protection agent on every workstation that contains the session in seconds, watched by an engineer who calls you (CIS 13 Network Monitoring and Defense).