If you suddenly receive a message flashing an IMO code and your phone blocks it, treat it as a red flag. Scammers often use cryptic identifiers to bypass filters and lure you into clicking a link or replying with personal data. The safest move is to ignore the message, avoid any interaction, and consider reporting it to your carrier or the FTC. Keep your device’s security settings up‑to‑date, and if you’re unsure, run a quick scan with reputable mobile security software. Never share verification codes or personal info with unknown senders, and block the number to prevent future attempts.
An unwanted text message containing an IMO code prompted me to block the sender immediately.