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Device Fingerprinting

Stop Chargeback Fraud with Device Evidence

First-party fraud is rising. Customers pay for goods and then claim 'this wasn't me' after receiving their purchase. Read about our partnership with Chargebacks911. For payment security, also see our PCI Shield solution.

Device
Device typeMacbook Pro 14”🍎
BrowserChrome
Operating systemMac OS X
Virtual machineClear
Network
IP Address🇺🇸102.91.103.206
ISPINEA
TypeResidential
ASN29465
Security checks
VPNClear
ProxyDetected
TorClear
VMClear
BotClear
TamperingClear
IncognitoDetected
Dev ToolsClosed

16 signals captured at transaction · ready to dispute

Industry shift

Visa's rules are changing

01 First-party fraud is rising

"Friendly Fraud" now accounts for up to 75% of all chargebacks

02 Visa is tightening merchant ratios

By 2026, Visa is dropping dispute ratios to 0.9% for merchants and 0.5% for acquirers (banks).

03 High TC40 counts (VAMP)

High VAMP ratios lead to fines, higher processing fees, or account termination.

WITH CSIDE
  • Use device fingerprinting for Compelling Evidence 3.0
  • Eliminate unwanted TC40s from friendly fraud attempts
  • Recover revenue and cut down charge back fees altogether
  • Keep VAMP ratios within thresholds to avoid penalties
How it works

Chargeback evidence, end to end

User Agent
Screen Res
Timezone
Language
#8f92a4c7...
01

Browser Based Fingerprinting

Fingerprint every device your visitors use and generate a unique hash.

Location
Device
IP
Network
CE 3.0 READY
02

Compelling Evidence 3.0

When a cardholder files a dispute, cside can provide CE 3.0 data

Purchase Device
Dispute Device
VS
100% Match
Bank Verified
03

Demonstrate Legitimate Purchases

Visa/bank will check the device match in accordance with CE 3.0 requirements

TC40 Rate: 0.00%
0 blocked
04

Stop Chargeback in Pre-Dispute

Raised disputes are auto-blocked and removed from your TC40 count

Privacy Compliance: cside fingerprinting is built from non-sensitive, permission-free signals.
Webinar

Webinar: How to Reduce Chargebacks with Browser Fingerprinting

Watch our discussion with chargeback fraud expert Justin Clements, where we discuss why merchants relying on receipts and proof of delivery are falling behind. To win against consumer first-party fraud, merchants are being pushed to use evidence layers like browser fingerprinting - which is the strongest signal in VISA's CE 3.0 program.

Watch Webinar
Simon Wijckmans
Simon Wijckmans CEO & Founder · cside
Justin Clements
Justin Clements Director of Media Relations · Chargebacks911
Compare

Why cside chargeback evidence outperforms every alternative

Feature
cside Device Identifier
Traditional evidence methods
Covers every device Generates a unique hash for laptops, desktops, and mobiles (96 % accuracy) Mobile: uses IMEI only and Desktops/laptops: often lack a reliable ID
Privacy-friendly data Builds the hash from non-sensitive, permission-free signals IPs, cookies, and other user data can raise privacy concerns
Consistent proof for disputes Same hash shows that the customer's device was used across multiple transactions. Evidence is fragmented (different identifiers per platform)
Quick, light integration One client-side script, hash delivered via API or webhook Multiple tools or manual log pulls to gather device details
FAQ

Questions, answered

01 What is chargeback friendly fraud and how does it hurt my business?

Chargeback fraud is when customers report a transaction to their bank or payment provider that claims was unauthorized, yet was legitimate. A chargeback usually will occur after a customer receives the goods or services, leaving you without the product or the payment for it. Fees from payment providers can vary, and usually includes the price of the item plus a chargeback fee tacked on by the provider. This can also lead to your merchant account being flagged as high-risk, and with too high of a chargeback rate can lead to your account being terminated.

02 How do fraudulent customers get away with false chargeback claims?

Customers can exploit the consumer protection system by telling their bank a purchase was unauthorized or fraudulent. Banks, wanting to do right by their customer, will side with them initially and reverse the payment while investigating the claim. The burden of proof falls on the merchant, and most businesses will struggle to provide the correct evidence to win the claim. Most customers performing chargebacks are aware of how the system works, and will target businesses that they believe can't fight back.

03 What makes device fingerprinting effective against chargeback fraud?

Device fingerprinting creates a unique identity for every visitor to your website by analyzing details given by their browser, device, and how they behave on the site. cside's solution generates these identifiers with further telemetry like installed plugins, screen resolution, and dozens of other little details that can determine who you are. This fingerprint remains consistent across sites, even if a customer changes their account or card, giving you the upper hand in proving they truly were the one who made the purchase.

04 How can I prove that a customer actually made a purchase they're disputing?

With cside's device fingerprinting technology, every purchase can be linked to a unique identifier that tracks the customer's behavior through their entire journey on your site. In the end, you'll have a complete record of everything they used to make the purchase - giving you concrete evidence proving that their device was used for the purchase, and effectively disproving it was unauthorized at all.

05 Why do traditional fraud prevention methods fail against chargeback fraud?

Traditional fraud tries proactively to block suspicious transactions before the sale happens, but chargeback fraud happens after the sale happens. Most security measures aren't going to be able to identify customers who are going to try and dispute a charge later - because these customers, on paper, look legitimate until they're not. Continuously monitoring customer behavior patterns and device consistency over time allows you to identify repeat offenders.

06 How much does chargeback fraud typically cost businesses?

Costs can vary, but most businesses usually would lose 2-3 times the original price of the transaction, after factoring in lost product, chargeback fees, administrative costs, and higher processing rates as a result of the chargeback. Higher risk industries can see chargeback rates at 5 to 10%, but low-risk industries can expect an average of 0.5-1% of transactions.

07 How does device fingerprinting help me build stronger chargeback dispute cases?

By fingerprinting a user's device, it provides your business a competitive advantage by being able to document the customer's journey with timestamps and device consistency data, showing their bank that it indeed was the customer who made the purchase. This evidence just makes it harder for the customer to claim that it was unauthorized.

Didn't find what you were looking for?

Talk to a chargeback expert
Stop paying for fraud

Win disputes with device evidence

One-script setup. Hash-based proof in hand for every transaction.

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