A sophisticated new phishing campaign orchestrated by Russian intelligence agencies is bypassing the world's most secure messaging app, Signal. They bypass, not by cracking its unbreakable encryption, but by tricking users into handing over their Backup Recovery Keys. In this "master key" scam, attackers impersonate official Signal Support within the app, claiming a "sync error" threatens to delete years of data, and panic victims into pasting their unique recovery key into a chat. Once stolen, this key acts as a permanent backdoor, allowing spies to silently download and read the victim's entire message history - including private strategy discussions, financial deals, and sensitive government communications - without ever triggering an alert, and even if the victim changes their password or creates a new account. For businesses, the impact is catastrophic: a single compromised account can expose years of valuable, private data, confidential plans, and client media to state-sponsored parties, leading to massive fines, irreversible damage, and a total loss of competitive advantage. The significance of this threat lies in its ability to neutralize the strongest encryption through simple human error. As such, organizations must immediately enforce a "never share your key" policy, disable cloud backups for high-risk users in favor of air-gapped storage, and implement strict verification protocols to ensure that a moment of panic does not result in the permanent theft of your most valuable secrets.