STEALIEN

AppSuit VPNBlockThe moment a VPN opens, insider risk rises,
block unauthorized bypass connections at the source with VPNBlock

A dedicated security solution that detects·blocks bypass connections via VPN and Proxy in mobile apps Complete network access control covering overseas IP access control and Fake GPS detection

The moment a bypass connection opens internal confidential data is no longer protected

VPN and Proxy are legitimate network functions, but the moment they are used as bypass routes, they become attack channels. In the face of connections that disguise location·identity, regional policies, age restrictions, and user identification are all neutralized, and without a dedicated detection solution, they cannot even be distinguished from normal traffic.

STAGE 01 · Disguise

Disguising location/identity via VPN

Hides the real location and identity through a VPN to access the service, attempting policy bypass and fraudulent use.

STAGE 02 · Infiltration

Rising overseas IP and bypass connections

Attempts data leakage·tampering by accessing domestic services from overseas without authorization or by manipulating traffic routed through a Proxy.

STAGE 03 · Concealment

Difficulty identifying abnormal users

Users employing VPN/Proxy are difficult to distinguish from legitimate users, making detection itself impossible with conventional security systems.

STAGE 04 · Abuse

Policy bypass and service abuse

Bypasses region-based access restrictions, age restrictions, and service usage policies to abuse the service and compromise its integrity.

* Because VPN/Proxy bypassing is an attack that exploits legitimate network functions, it cannot even be detected without a dedicated detection solution.

Three-stage defense that blocks bypass connections

Rather than merely detecting VPN·Proxy threats, it immediately blocks them per policy and verifies location·device integrity.

DETECT

VPN and proxy detection

  • Signature-based VPN detection
  • Proxy app detection
  • Rooted device detection
  • Emulator detection

CONTROL

Bypass connection blocking

  • Instant blocking
  • Notification response
  • Policy customization

POLICY

Risky network policy enforcement

  • Overseas IP access control
  • Fake GPS detection
  • Region-based policy configuration
  • Access allow/block configuration

Protection areas

Blocks VPN/Proxy in the four areas where bypass connections operate most dangerously.

Financial services

  • Banking apps
  • Securities apps
  • Fintech services

Access control

  • Overseas IP blocking
  • Bypass route blocking
  • Unauthorized access prevention

Location security

  • Fake GPS detection
  • Location spoofing prevention
  • Region policy enforcement

Device integrity

  • Rooted device detection
  • Emulator detection
  • Device security verification

Signature-based precision detection + policy-based instant response

By detecting the connection state rather than the app itself, it responds flexibly even to modified attacks. Blocking·notification·region-based methods can be freely customized per the client's policy.

DETECTION

Signature-based precision detection

Signature + overseas IP-based detection

Analyzes the unique signatures used by VPN/Proxy to detect every existing bypass app, and detects overseas IP access in real time.

Fake GPS + device integrity detection

Simultaneously detects GPS signal spoofing and rooting·emulator environments to verify device-security-based integrity.

Detects the connection route rather than the app itself to respond to modified bypass attacks

RESPONSE

Policy-based instant response

Instant blocking method

Blocks app usage immediately upon detection, fundamentally preventing damage from bypass connections via VPN/Proxy.

Region-based policy method

Sets region-based policies that block or allow overseas IP access, enabling fine-grained configuration of service access control.

Blocking·notification·region-based methods can be customized per the client's policy

Three simple steps, protection starts right after installation

Easily added to your existing development environment via an SDK · library approach.

Works instantly as an in-app library with no separate server

Embedded in the client's app via an SDK · library approach. It operates as an in-app (library) form with no separate server integration.

SDK approachNo server requiredPolicy customization
STEP 01

Add the SDK · library

Easily applied to your existing development environment via an SDK · library approach

Add the VPNBlock library file to your Android app development environment.

STEP 02

Configure policy

Customizable to fit the client's security policy

Set the detection scope and response method (blocking·notification·region-based) according to the guide

STEP 03

Application complete

Works instantly in an in-app form with no separate server integration

Complete the embedding of security features through the app build

Proven technology, certified trust

The core differentiators of AppSuit VPNBlock that complete access control.

  • Network-based access control

    Analyzes the connection route itself, not simple app blocking, to block VPN·Proxy bypass access at the source.

  • Flexible policy-based blocking

    Instant blocking·notification·region-based allow/block can be freely configured to fit your policy.

  • Tailored response by service environment

    Provides bypass-blocking policies suited to various service environments such as finance, mobility, and platforms.

  • Comprehensive signature detection

    Precisely detects based on a vast signature DB of every existing VPN/Proxy app.

  • Fake GPS detection

    Holds proprietary technology that detects, in real time, the act of manipulating GPS signals to generate false location information.

  • Continuous update response

    Responds to new VPN apps and OS changes to defend against the latest bypass connection threats.

Positioning within the AppSuit product suite

VPNBlock focuses on blocking bypass connection threats at the 'Process' stage between user input and output.

InputKeypadInput data protection
ProcessAV · VPNBlockMalware·bypass blocking
OutputAnti-CaptureScreen data protection

Positioning within the AppSuit product suite

Areas covered by VPNBlock

  • VPN/Proxy detection
  • Bypass connection blocking
  • Region-based policy enforcement

Handled by other modules

  • Keypad — Data encryption·input protection
  • AV — Malware detection·analysis
  • Anti-Capture — Screen capture blocking

Optional service

Integrate with AppSuit Radar for real-time monitoring

VPNBlock customers can additionally integrate Radar to centrally monitor detection data

AppSuit Radar

Unified monitoring

  • AppSuit

    Premium

  • AppSuit

    Air

  • AppSuit

    AV

  • AppSuit

    RemoteBlock

  • AppSuit

    MacroBlock

  • AppSuit

    VPNBlock

* AppSuit Radar is an optional service available for additional integration exclusively to VPNBlock customers

  • Real-time threat monitoring
  • Unified dashboard
  • Policy-based response
  • Monthly reports
Learn more about AppSuit Radar

Quality certifications and intellectual property

VPNBlock's security reliability has been verified based on official certifications.

Quality certification

GS (Good Software) Certification Grade 1

A product awarded the highest grade of the software quality certification granted by the Telecommunications Technology Association (TTA). With verified functionality·reliability·security, it is well suited for public-sector adoption and procurement review.

Frequently Asked Questions

Considering adopting AppSuit VPNBlock?

Block VPN- and proxy-based bypass connections so your service access policy can be operated safely. POC requests, materials, and technical inquiries are all welcome.