Anti-theft solutions for Land Cruiser, Alphard & moreCar Security Specialist LOGON
AUTHOR / Grgo / Panthera
We propose the best car security system to match your vehicle, parking environment, and usage.
High-risk vehicles also welcome — please consult us
Vehicle Theft is Still on the Rise
Current theft methods include
Relay Attack · CAN Invader
These electronic techniques are now mainstream. Many cases cannot be prevented by OEM security alone — combining multiple countermeasures is essential.
A technique that relays the faint radio waves from smart keys, causing the vehicle to mistakenly recognize the key is nearby and unlock/start. Keys near the front door or parking area are often targeted — simply carrying your key puts you at risk.
A technique that directly intrudes into the vehicle's CAN communication to forcibly send door unlock and engine start signals. Wiring is accessed through gaps in the body or behind bumpers, so having a key is irrelevant.
Using a specialized scan tool (nicknamed 'Game Boy') to unlock doors or disable the immobilizer via the OBD port. In some models, keys can even be created and registered — relatively easy to execute with the right equipment.
What security does your car truly need?
Car security is not about 'peace of mind just by having it'
What matters is
Current theft is centered on electronic techniques
Conventional security increasingly fails to prevent these attacks
That's why 'detection alone' is not enough —
"Don't let them in" "Don't let them start the engine"
Combining multiple layers of defense is essential!
Products
Car Security Lineup
Next-Generation Car Security
AUTHOR
AUTHOR is a next-generation security system centered on a digital immobilizer. It delivers strong protection on its own, but combining multiple products unleashes overwhelming defensive power.
- Maintains OEM functions
- No false alarms
- Complete stealth design
IGLA (Digital Immobilizer)
Controls engine start using CAN communication
KEYLESS BLOCK
Relay attack defense Completely blocks door access
AUTHOR ALARM
Anomaly detection & deterrence
TOR (When Added)
Adds one analog cutoff circuit
Fusion of digital key + log
Invisible defense + physical blocking
Smart Authentication
- Key fob (CR2032 button battery)
- Smartphone (Bluetooth)
- Adopts masking communication technology undetectable from outside
Communication Performance
- Via AUTHOR CONNECT — operable via 4G from anywhere in Japan or overseas
Relay Attack Defense
Against relay-based theft, KEYLESS BLOCK disables door access itself — even if the signal reaches, the door simply won't open. One of the most reliable countermeasures available today.
CAN Invader Defense
Against CAN intrusion, the IGLA digital immobilizer completely blocks engine start without proper authentication.
Game Boy Defense
Against Game Boy attacks, having a mechanism that prevents engine start even after unauthorized access is critical. IGLA blocks startup unless correct authentication (PIN / key fob / smartphone) is matched. Combining multiple measures achieves even higher defense.
High-Performance Car Security
Grgo
Grgo is a well-balanced security system excellent in detection, deterrence, and communication.
- Easy to use
- High notification performance
- Great cost balance
Analog Immobilizer
- Single circuit (single control)
- Blocks engine start line
Alarm Performance
- High-sensitivity sensor
- Loud siren
Remote Control
- Dedicated remote
- Low-power wireless
Keyless Phantom Compatible
- When installed:
- · ZVT · OEM keyless integration
- · Relay attack defense
- · Engine starter compatible
Smartphone Integration
- Keyless Phantom + Scan Lock
- Bluetooth control with Touch Pro add-on
Anti-Theft Measures
- · Relay attack → Keyless Phantom
- · CAN defense → Installation method
Top-Class Car Security
Panthera
Panthera is the strongest class of security achieving multi-layer defense.
- Top-class defense
- High expandability
- Pro-grade configuration
Analog Immobilizer
- · Dual circuit (double blocking)
- · Blocks multiple lines required for engine start
Key Points
- · Depending on cut points, vehicle computer errors may occur
- Especially OBD inspection vehicles require countermeasures
Our Approach
- · Error-free wiring selection
- · Advanced diagnostic check · Post-installation verification
Sensor Performance
- · High sensitivity
- · Compatible with Z302 / Z706 (digital tilt sensor)
Remote Control
- · Dedicated remote (low-power wireless)
- · USB rechargeable
Keyless Phantom
- · OEM keyless integration
- · Relay attack defense
- · Engine starter compatible
Smartphone Integration
- · Keyless Phantom + Scan Lock Touch Pro enables app control
In-Depth Comparison of Top 5 Systems
Toyota OEM Security ·AUTHOR（IGLA / ALARM / KLB / TOR / TELL COMPASS）・Grgo・Panthera
We compared the features and differences of each in plain terms based on actual security performance.
| Item | Toyota OEM Premium Security | IGLA | IGLA PREMIUM JP | AUTHOR ALARM | KEYLESS BLOCK | TOR | TELL COMPASS | Grgo ZVT | Panthera Z706 |
|---|---|---|---|---|---|---|---|---|---|
| Recommendation Level | ★★★☆☆ | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★☆ | ★★★★★ |
| Type of Protection | Intrusion + deterrence + control | Prevents movement | Prevents movement + physical obstruction | Intrusion + deterrence + control | Prevents opening | Physical blocking | Visibility | Algorithm detection + immobilizer | Algorithm detection + dual immobilizer |
| Can it protect doors / hood / trunk? | △ | ✕ | △ Effective against physical prying | ◯ | ◎ | ✕ | ✕ | ◯ | ◯ |
| Digital line unauthorized access / start prevention | △ | ✕ | ◯ | ◯ | ✕ | ✕ | ✕ | ✕ | ✕ |
| Can it prevent engine start? | ✕ | ◎ | ◎ | ◎ | ✕ | ◎ | ✕ | ◯ Engine start blocked | ◎ |
| Engine block-on timing | ◯ 60 sec after stop | ◯ A few sec after engine stop | ◯ A few sec after engine stop | ◯ A few sec after engine stop | ✕ | ◯ Linked with IGLA | ◯ Remote start lock when linked with IGLA | ◯ When remote is operated / doors locked | ◯ When remote is operated / doors locked |
| Ignition detection | ◯ | ✕ | ◯ | ◎ | △ Start switch disabled | ✕ | ✕ | ◯ | ◯ |
| Shock sensor | ✕ | ✕ | ✕ | ◯ | ✕ | ✕ | ✕ | ◎ High sensitivity | ◎ High sensitivity |
| Motion sensor | ✕ | ✕ | ✕ | ◯ | ✕ | ✕ | ✕ | ◎ | ◎ |
| Tilt sensor | ✕ | ✕ | ✕ | ◯ | ✕ | ✕ | ✕ | ◯ | ◯ |
| Area sensor | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | Optional | Z706 standard |
| IR sensor | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | Optional | Z706 standard |
| CAN Invader defense | ◯ | ◯ | ◯ | ◯ | ◯ (Does not unlock via CAN Invader) | ✕ | ✕ | ◯ | ◎ |
| Relay Attack | ◯ | ◯ Door opens but engine cannot start | ◯ Door opens but engine cannot start | ◯ Siren after a few seconds depending on settings | ◎ | ✕ | ✕ | ◯ Door opens but engine cannot start | ◯ Door opens but engine cannot start |
| Game Boy defense | △ | ◯ Door opens but engine cannot start | ◯ Door opens but engine cannot start | ◯ Siren after a few seconds depending on settings | ◎ | ✕ | ✕ | ◯ Door opens but engine cannot start | ◯ Door opens but engine cannot start |
| Carjacking defense | △ | ◎ | ◎ | ◎ | ✕ | ◯ | ✕ | △ | ◯ |
| Alarm activation timing | ◯ | ✕ | ◯ 60 sec after lock | ◯ 60 sec after lock | ✕ | ◯ Linked with IGLA | ◯ Linked with IGLA (smartphone notification) | ◯ At lock | ◯ At lock |
| Can deactivate with key in pocket? | ◯ | ◯ | ◯ | ◯ | ◯ | ◯ Linked with IGLA | ◯ Linked with IGLA (smartphone notification) | ◯ When Keyless Phantom + Scan Lock | ◯ When Keyless Phantom + Scan Lock |
| Smartphone support | ◯ | ◎ | ◎ | ◎ | ◎ | ✕ | ◎ | ◯ When Keyless Phantom + Scan Lock | ◯ When Keyless Phantom + Scan Lock |
| Location tracking | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ◎ | ◯ Within remote range | ◯ Within remote range |
| Remote operation | ✕ | △ Available with optional Compass 4G | △ Available with optional Compass 4G | △ Available with optional Compass 4G | Linked with IGLA / available with optional Compass 4G | ✕ | ◎ | ✕ | ✕ |
| Alarm | ◯ | ✕ | ✕ | ◎ | ✕ | ✕ | ✕ | ◎ | ◎ |
| When alarm sounds during guard mode | Driver door open + OEM alarm | ✕ | △ When physically tilted rather than electrically | Intrusion + impact | ✕ | ✕ | ✕ | Intrusion + impact | Intrusion + impact |
| Number of alarm triggers | 1 time + OEM alarm | None | None | Multiple times each event | None | None | None | Multiple times | Multiple times |
| Operation method | Key fob | Multiple methods | Multiple methods | Multiple methods | Linked | Linked | Smartphone | Remote (Note 2) | Remote (Note 2) |
| External appearance change | Key fob | Almost none | Almost none | Almost none | None | None | None | Compact | Compact |
| Emergency release | △¹ | ◎¹ | ◎¹ | ◎¹ | ◎¹ | ◯¹ | ◯¹ | ◯¹ | ◯¹ |
| Number of remotes / key fobs | 2 units | 2 units + 2 smartphone keys | 2 units + 2 smartphone keys | 2 units + 2 smartphone keys | 2 units + 2 smartphone keys | Linked | App | LCD main 1 + sub 1 | LCD main 1 + sub 1 |
| Bluetooth masking | Unconfirmed | ◎ | ◎ When linked with Keyless Block | ◎ | ◎ | Linked | App | △ | △ |
| If both keys are lost | Repurchase and reinstall | PIN release / dealer setup | PIN release / dealer setup | PIN release / dealer setup | PIN release / dealer setup | Linked | App | PIN code / when Keyless Phantom + Scan Lock | PIN code / when Keyless Phantom + Scan Lock |
| Remote / key fob battery dead | Start by bringing it near the antenna | Start via smartphone + PIN | Start via smartphone + PIN | Start via smartphone + PIN | Lock via smartphone + PIN | Linked | App | PIN code / when Keyless Phantom + Scan Lock | PIN code / when Keyless Phantom + Scan Lock |
| Remote / key fob battery consumption | Approx. 1 year | Approx. 6 months CR2032 | Approx. 6 months CR2032 | Approx. 6 months CR2032 | Approx. 6 months CR2032 | Linked | App | Approx. 3-4 months, 4 batteries | Approx. 1 month depending on use / USB charging |
| System suspension (e.g. inspection) | None because OEM | ◯ Service mode | ◯ Service mode | ◯ Service mode | ◯ Service mode | Linked | App | ◯ Valet mode | ◯ Valet mode |
| OEM remote start compatible | ◯ | ◯ | ◯ | ◯ | ◯ | Linked | App | ◯ When Keyless Phantom is installed | ◯ When Keyless Phantom is installed |
| Expandability | Unknown | ◯ | ◯ | ◯ | ◯ | Linked | App | ◯ | ◯ |
| Installation dependency | None | Yes | Yes | Yes | Low | High | Yes | High | Very high |
| Purchase price (approx.) | Approx. JPY 200,000+ | Approx. JPY 100,000+ | Approx. JPY 100,000+ | Approx. JPY 200,000+ | Approx. JPY 100,000+ | Approx. JPY 80,000+ | Approx. JPY 100,000+ | Approx. JPY 200,000+ | Approx. JPY 300,000+ |
| Installation time | 2 days | Half day | Half day | 1 day | Half day | Half day | Half day | 1-2 days | 2 days |
| Power consumption (excl. options) | 10 mmA or less | 10 mmA | 10 mmA | 10 mmA | 10 mmA | 10 mmA | 10 mmA | 15 mmA | 15 mmA |
◎: Excellent / ◯: Supported / △: Limited / ✕: None
Note 1: Emergency = Emergency release function operable only by the owner
Note 2: With Keyless Phantom: OEM keyless integration; with Scan Lock added: smartphone (Bluetooth) operation
Prices vary by configuration and vehicle model.
As this table shows, security performance changes greatly not by 'what you install' but 'how you combine it.'
AUTHOR
Easy operation · Smartphone compatibleCompact design, controllable from your smartphone. The next-generation model ideal for everyday use.
Grgo
Notification & Balance focusedFor those who prioritize notification accuracy and cost balance. Excellent usability.
Panthera
Performance focusedFor those who demand top-level security performance without compromise. Highly expandable.
Recommended for Land Cruiser
AUTHOR full config or Panthera
Recommended for Alphard / Vellfire
AUTHOR or Grgo
Why AUTHOR is Chosen
By combining AUTHOR products,
every phase — pre-intrusion, during intrusion, and engine start — is covered
In other words, you can create a state where they can't even get in, and even if they do, they can't move it.
Positioning of Grgo / Panthera
Grgo and Panthera are
Excellent security systems combining algorithm-based anomaly detection with immobilizer control
Furthermore,
Combining with Keyless Phantom enables OEM keyless integration; adding Scan Lock Touch Pro allows smartphone operation
The Decisive Difference
In other words
👉 Same product, butperformance varies by the shop that installs it
LOGON's Strengths & Commitment to Installation Quality
26 years of experience · #2 installation record in Japan. Trusted LOGON design capability and installation quality.
Years of installation expertise
AUTHOR sales record 2025
AUTHOR sales record 2024
Installation Quality
Optimized design per vehicle
We propose a personalized plan based on your vehicle, usage, and parking environment.
Three-type advanced diagnostic check
OEM, general, and detailed analysis diagnostics for thorough error management on entry and exit.
Saved as your personal data
Diagnostic results, installation history, and vehicle condition recorded and managed long-term.
Safe installation for OBD vehicles
Error-free design + diagnostic confirmation + post-installation check, considering vehicle inspection and dealer visits.
GUIDE
How to Order
From application to installation completion
How to Order
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