The device, the app, the cloud.
We test the whole chain.

A connected device is never alone. It talks to a mobile app, a wireless link, and a cloud backend, and attackers hop from the weakest one to the rest. We test the whole ecosystem, from the chip to the cloud.
Diagram showing a central wireless router connected to various IoT devices including a smartphone, a communication tower, an electric car with charging station, a smart meter, a microchip, and an IoT gateway device.Solid red circle on a transparent background.A bright green circular dot on a white background.Solid red circle on a transparent background.A bright green circular dot on a white background.Solid red circle on a transparent background.A bright green circular dot on a white background.Solid red circle on a transparent background.A bright green circular dot on a white background.Text in red on a dark background reading: Firmware vulnerability found.Green text on a black background reading 'Firmware vulnerability patched'.Red text on black background reading 'UART/JTAG access gained'.Green text on a black background reading 'UART/JTAG access disabled'.Red text on dark background reading 'Insecure communication intercepted'.Text reading 'Communication encrypted' in bright green on a black background.Red text on a dark background reading 'Weak device authentication'.Text reading 'Device authentication hardened' in bright green on a dark green background.
Faint curved orange-red light streak on a dark black background with small scattered light dots.

The question that matters

Your device is secure.
Your app is secure.
Your cloud is secure.
But has anyone tested what happens when an attacker moves between them?
WHY MOST IoT Security TESTINGs FALL SHORT

Testing the device alone leaves the doors around it open

The device is only part of the story. The app that controls it, the wireless protocols, and the cloud it reports to are all ways in. Test one and skip the rest, and you've left the easy paths open.
Most IoT Security Vendors
Scan the network and calls it done
Use automated tools to find debug ports
Give up on chips that are hard to read
Run automated scans only
One tester for the whole device
Send a report and exits
Payatu
Opens the device up: full hardware teardown and PCB board analysis
Finds hidden debug ports manually, even when tools can't
Pulls firmware off any chip, however protected
AI-native and research-led: our own tools (EXPLIoT, BUS Auditor) plus deep manual analysis
A specialist for each part: hardware, firmware, and wireless protocol
Ranks findings by severity, then re-tests the fixes
What we test

Chip to cloud

We scope to what matters most in your device, then test every layer a real attacker would.
Circuit board & chips
Debug ports
Firmware
BLE
Zigbee
Wi-Fi
The Mobile app
 Cloud & APIs
The Update Mechanism
Circuit board & chips
Debug ports
Firmware
BLE
Zigbee
Wi-Fi
The Mobile app
 Cloud & APIs
The Update Mechanism

Hardware

Hardware Disassembly and PCB reversing
Finding hidden debug ports (UART, JTAG)
Pulling data straight off the chips
Verifying the tamper and cloning resistance
Gradient background with smooth transition from dark blue on the lower left to deep red on the lower right, blending into black at the top.
Hardware

Firmware

Extracting and reading the firmware
Identifying the Hardcoded sensitive info like password, keys or certificates
Insecure update mechanisms
Backdoors and hidden logic
Firmware

Connected ecosystem

The mobile app that controls it
Wireless links (BLE, Zigbee, Wi-Fi, LoRa)
The cloud backend and its APIs
Data leaking between device and cloud
Connected ecosystem
Hardware
Hardware Disassembly and PCB reversing
Finding hidden debug ports (UART, JTAG)
Pulling data straight off the chips
Verifying the tamper and cloning resistance
Firmware
Extracting and reading the firmware
Identifying the Hardcoded sensitive info like password, keys or certificates
Insecure update mechanisms
Backdoors and hidden logic
Faint orange light fading into darkness, appearing like a distant sunset or glow on the horizon in a dark environment.
Connected ecosystem
The mobile app that controls it
Wireless links (BLE, Zigbee, Wi-Fi, LoRa)
Insecure update mechanisms
The cloud backend and its APIs
Data leaking between device and cloud
Process

How it works

Simple, step by step, from opening the device to confirming the fix.

Understand the device

You tell us what the device does and what matters most. We plan the test around it.
01

Open it up

We take the device apart, map the board, and find the ports and chips worth attacking.
02

Attack the whole system

We go after the wireless, the app, and the cloud, and see how far one weak link goes.
04

Get the firmware

We pull the firmware off the device and read it for passwords, keys, and flaws.
03

Explain what we found

Every issue in plain language, ranked by how much it would hurt the business.
05

Fix

We offer remediation support to fix each issue.
06
Process

How it works

Simple, step by step, from opening the device to confirming the fix.

Understand the device

You tell us what the device does and what matters most. We plan the test around it.
01

Open it up

We take the device apart, map the board, and find the ports and chips worth attacking.
02

Get the firmware

We pull the firmware off the device and read it for passwords, keys, and flaws.
03

Attack the whole system

We go after the wireless, the app, and the cloud, and see how far one weak link goes.
04

Explain what we found

Every issue in plain language, ranked by how much it would hurt the business.
05

Fix

We offer remediation support to fix each issue.
06
Process
How it works
Simple, step by step, from opening the device to confirming the fix.

Understand the device

You tell us what the device does and what matters most. We plan the test around it.
01

Open it up

We take the device apart, map the board, and find the ports and chips worth attacking.
02

Get the firmware

We pull the firmware off the device and read it for passwords, keys, and flaws.
03

Attack the whole system

We go after the wireless, the app, and the cloud, and see how far one weak link goes.
04

Explain what we found

Every issue in plain language, ranked by how much it would hurt the business.
05

Fix

We offer remediation support to fix each issue.
06
Real world impact

Real applications, real findings.

Telecom
Hardware Security Assessment

Hardware Security Assessment of a 4G Dongle for a Giant Telecom Company

View Details
Telecom
Telecom
Hardware Security Assessment
Firmware Security Assessment
Web Application Security Testing
IoT & hardware
Automotive
Critical Infrastructure Assessment

Protecting Industrial OT Systems: OT Security Engagement with a Leading EV Manufacturer

View Details
Automotive
Automotive
Critical Infrastructure Assessment
OT/ICS
Testimonials

What IoT teams say about working with us

Small white square with the top left corner cut out, creating a diagonal edge.
neoeyed logo in blue lowercase letters.
Video thumbnail showing a man named Carthic Kameshwaran, Head of Delivery at moEYED, speaking directly to the camera in a blue shirt.

Carthic Kameshwaran

Head of Delivery - neoEYED

Small white square with the top left corner cut out, creating a diagonal edge.
Stylized logo spelling the word 'nkash' with a geometric shape resembling an 'E' at the start in a gradient of blue shades.
Man in a light blue shirt speaking indoors with a potted plant and framed picture on a green wall behind him.

Arockiaraj Martin

CISO- Enkash

Small white square with the top left corner cut out, creating a diagonal edge.
Logo featuring a stylized purple circle with an inner dot next to the text 'Butn' in purple font on a black background.
Payatu's focus on in-depth defence, quality, and proactive approach to all their services were precisely what our fast-growing publicly listed company needed.
Payatu's Services have helped us in ensuring that not only do we exceed strict compliance standards, but also ensure that security is not just a tick box exercise in our organisation. We have been able to make security an integral part of...

Simran Gambhir

Chief Information Officer - Butn, Sydney

Small white square with the top left corner cut out, creating a diagonal edge.
CheckRed Security company logo with a stylized red cloud and checkmark icon next to the black and red text.
Payatu delivered a 360-degree penetration testing exercise across our web applications and internal network. Their structured, methodical approach and deep technical understanding were evident throughout the engagement. They didn’t just give us a list of vulnerabilities, they provided actionable insights that helped to improve our security posture. The engagement was constructive.

Sushil Vanve

Director of Engineering - CheckRed

WHY PAYATU

Why device makers pick us

We break devices at the chip and read the code that runs them. Few teams in the world go this deep.
OSCP, OSCE, GXPN & eWPTX, plus hardware certs
Certin logo with stylized text and a graphic element resembling a circuit or connection symbol.
ISO 17025 accredited CERT-In empanelled
Founders of Nullcon &
hardwear.io
Icon of a gray document with three horizontal lines and a red dot on the left side, all inside a white circular background.
CVEs in IoT platforms, embedded OS & wireless
Icon of a person standing behind a podium with a microphone and a red dot on the podium front.
Creators of EXPLIoT & BUS Auditor
Simplified gray microchip icon inside a white circle with a red dot on top.
Our own hardware lab
Circle with a gradient of red shades, transitioning from dark red at the top to bright red at the bottom.Solid red symmetrical shape with pointed top and bottom edges, resembling an elongated lens or a leaf.
White text on black background reading 'Safer devices. Stronger ecosystems.'
Icon of a computer monitor with a red dot on the screen above the text 'Expert storage-Firewall'.
Logo featuring a red square centered within a white, stylized camera viewfinder icon, with the text 'Beyond external expert network' below it in white font on a black background.
What you get

The whole story, not just a scan result.

Complete explaination

Exactly what we found and how we got there, in plain words your team can follow.

What it means for the business

Each issue ranked by real-world impact, not just a severity score.
Close-up of a blue circuit board with a black microchip module mounted on it, illuminated by orange lighting.

The proof

Photos, extracted firmware, and evidence behind every finding.

The fix, then a re-check

Clear fixes for your engineers, hardware and design advice, and a retest to confirm.
FAQ

Questions Web Application teams ask us

What is Web Security Testing?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
What vulnerabilities are tested during a Web Security Assessment?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
How is Web Security Testing different from a vulnerability scan?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
When should we perform Web Security Testing?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
What do we receive after the Web Security Assessment?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
Can Web Security Testing identify business logic vulnerabilities?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.