What to do if there is no communication for more than a day?

Use a backup channel—satellite messenger, radio, or prearranged meeting point. If that’s not possible, follow the plan: move to the designated contact point without changing the route unnecessarily. Share your location at the first opportunity.

Which messenger is best to use?

Signal or Session—both support end-to-end encryption, do not store metadata, can work without a phone number, support anonymous registration, and are open-source. This reduces tracking risks and increases confidentiality.

Is satellite communication worth using?

Yes, if you are in an area without mobile coverage or there is a high risk of losing it. Devices like Garmin InReach or Zoleo allow you to send coordinates, short messages, SOS signals, receive weather forecasts, and maintain contact in remote areas.

How to preserve device battery life?

Use power banks, solar chargers, turn off unnecessary functions (Bluetooth, Wi‑Fi, GPS when not needed), lower screen brightness, enable power-saving mode, avoid overheating, and store devices in insulated cases.

How to store contacts securely?

Encrypt your contact list in a secure app (e.g., Bitwarden, KeePassXC) or keep it on paper in a coded format understandable only to you and your loved ones. Avoid storing contacts openly on SIM cards, in unprotected cloud storage, or in unencrypted notes.

What to do if a device falls into someone else’s hands?

Immediately inform your loved ones via a backup channel, change all important passwords, activate the remote data wipe function (if it has been set up), assess what information may have been compromised, block access to accounts, report the incident to the relevant authorities, and take additional security measures.

Gray Person 7/17/25 Gray Person 7/17/25

Gray Man in the World of Intelligence - Do Agents Really Use This Tactic?

Discover how real spies use the Gray Man tactic to stay unnoticed. Explore its history, psychology, and modern challenges in the world of espionage.

The History of the Gray Man Concept - Where Did It Come From?

Explore the evolution of the Gray Man—from ancient camouflage and Cold War espionage to urban tactics used today. Learn where it all began.

The Psychology of the Gray Man: How to Disappear in a Crowd

To disappear in a crowd, don’t stand out—match the rhythm, mood, and behavior around you. Understanding contrast, context, and emotional control helps you move through public spaces unnoticed and in full control.

Gray Man in the World of Intelligence - Do Agents Really Use This Tactic?

The History of the Gray Man Concept - Where Did It Come From?

The Psychology of the Gray Man: How to Disappear in a Crowd

GRAY PERSON