Two approaches

Every engine has a blind spot. Dual Engine doesn’t.

AI heuristics detect new threats — long before a signature exists. Signatures identify known variants with precision — even when heuristics miss them. Two technologies. Two strengths. One sees what the other might miss.

Both engines run simultaneously — independently, without influencing each other. What one misses, the other catches.

55.664

APT attacks currently detected worldwide by Protectstar

Protectstar AI Intelligence · as of April 2026

Adaptive Intelligence

Two engines. One mission.

Adaptive AI meets decades of signature expertise.

Protectstar AI Engine

Deep Detective™ · In continuous development since 2016

Deep Detective™ combines heuristics, AI Life Rules, and the Protectstar AI Cloud. When new spyware appears anywhere in the world, the AI updates protection for devices worldwide within seconds — automatically, without a manual update. The more users there are, the sharper the protection becomes for everyone.

Deep Detective™ AI Life Rules AI Cloud

Learn more about our AI →

Signature Engine

Industry-grade · Proven precision

Millions of industry-grade spyware definitions. A second opinion that identifies every known variant with precision — exactly where pure heuristics reach their limits.

Signature database Broad coverage Second opinion

Checked in parallel

Parallel. Intelligent. Comprehensive.

When a scan starts, both engines work in parallel — independently of each other. Their results are then intelligently combined.

Direct comparison

Single Engine vs. Dual Engine.

What one engine can do. What two engines make possible.

Capability

Single Engine

Dual Engine

Zero-Day Detection

Known Spyware Signatures

Mutual Verification

Minimized Blind Spots

AV-TEST + DEKRA Certified

Combined AI + Signature Protection

Spyware watches.
Dual Engine stops it.

Every engine has a blind spot. Dual Engine doesn’t.

Two engines. One mission.

Protectstar AI Engine

Signature Engine

Parallel. Intelligent. Comprehensive.

Single Engine vs. Dual Engine.

Your privacy.
Protected on both fronts.

Spyware watches.Dual Engine stops it.

Every engine has a blind spot. Dual Engine doesn’t.

Two engines. One mission.

Protectstar AI Engine

Signature Engine

Parallel. Intelligent. Comprehensive.

Single Engine vs. Dual Engine.

Your privacy.Protected on both fronts.

Spyware watches.
Dual Engine stops it.

Your privacy.
Protected on both fronts.