What is Active Session Defense (ASD)?

Active Session Defense (ASD) is a safety architecture, not an app. It defines how a phone should detect hostile possession during an active session and respond in real time to provide protection. 

Modern devices treat the lock screen as the only real line of defense. Once a phone or device is unlocked—whether willingly, under pressure, or without the owner’s knowledge—everything becomes exposed at once: messages, photos, accounts, apps, and sensitive data. ASD closes this gap. 

Figure 1: Active Session Defense (ASD)  -  Field Diagram

What ASD does

• Limits exposure: Controls what can be seen or accessed during an active session

• Adds verification: Requires extra checks for sensitive actions

• Detects hostile possession: Recognizes when a device is in unsafe hands

• Responds in real time: Can restrict, hide, or lock down content dynamically

• Protects vulnerable users: Reduces exposure for kids, teens, and at‑risk individuals

• Gives control back: Lets users decide what is visible, shareable, or open

Who is ASD for?

• Families, parents, and children

• Teens and young adults

• Vulnerable users and at‑risk individuals

• Domestic‑violence survivors

• Military personnel (DoD)

• Defense intelligence operators (DIA)

• National intelligence and field officers (CIA)

• Signals and cyber personnel (NSA)

• Special operations forces (JSOC)

• Federal law enforcement and protective services

• Diplomatic and overseas personnel

• Anyone who has ever felt that “unlocked” should not mean “fully exposed”

Why ASD Matters

Phones cannot tell the difference between the owner, a friend, a partner, a stranger, or someone with bad intentions. Once unlocked, they trust everyone the same way.

ASD adds continuous possession assurance and hostile‑possession response so that safety doesn’t end at the lock screen.

The Problem: The Possession Gap in Mobile Safety

Modern devices assume the person holding the phone is the rightful, safe user.

Authentication ends at unlock — but harm begins after unlock.

Once a device is unlocked:

• There is no protection for children or vulnerable users

• There is no detection of coercion, fear, or duress

• There is no awareness of hostile possession

• There is no safety layer during active use

• There is no system monitoring behavioral risk in real time

This creates a critical blind spot known as the Possession Gap:

The period after unlock where the device cannot tell if the user is safe, in control, or acting under threat.

Every major safety failure — grooming, coercion, duress, hostile possession, manipulation — happens inside this gap.

No existing technology addresses this.