Why now70% of enterprise account takeover
targets the session
Your authentication is not built to stop it. Relock is.
Cookie Replay
Over 90 billion stolen browser cookies are circulating on criminal markets. Harvested through XSS or a malicious browser extension, a stolen cookie loads straight into the attacker's browser and drops them into an authenticated session — no login, no MFA.
Session Hijack
Industrialized by widely available infostealers like LummaC2, RedLine, and Vidar, these attacks lift the entire authenticated client state. The exfiltrated material often includes access and refresh tokens — letting the attacker persist well beyond a single session.
Identity Impersonation
The most complete session attack. Alongside the stolen session, the attacker clones the victim's device fingerprint and replays it all through an "anti-detect" browser. Sold as ready-made IMPaaS packages on criminal markets, they slip past even the strictest fraud and device controls.
Adversary-in-the-Middle
An all-too-common phishing technique: the attacker runs a live proxy between the user and the real service. When the victim signs in, the proxy grabs both the credentials and the authenticated session. Available to anyone as PhaaS kits like Tycoon 2FA.
We tested nearly 100top SaaS appsAlmost none noticeda stolen sessionWe tested nearly 100 top SaaS apps
Almost none noticed a stolen session
of G2's ranking leaders failed to stop a compromised session
Across three real-world attack scenarios, the vast majority of top software products could not tell apart a stolen session from the real user.
See all findings
95 apps, five business domains
From Marketing & Sales to Development and AI tools, these are best-in-class tools already trusted by millions of users, and exposure held steady across every one of them.
Only 1 of nearly 100 apps had a purpose-built session defense
Almost every application invested real effort in secure access, with strong MFA and phishing-resistant options, but few had any identifiable session-level protection in place.
Once inside, attackers have full run of the session
Compromised sessions were enough to export payrolls, send fake invoices to clients, and delete critical business data, all without needing another credential.
Cookie replay works almost as well as a full identity clone
The simplest attack tier still succeeded on 77% of apps, just 16 points behind the most sophisticated one tested.
Device fingerprinting makes no real difference
Attacks that reproduced the victim's device fingerprint succeeded at the same rate as attacks from a completely different machine.
Session Security
Landscape 2026
Read the full reportSee where Relockcan get youFor every app, every userSee where Relock can get youFor every app, every user
Relock prevents the use of stolen sessions in any application.
Compare it against your current defenses and what we see in the field.
With Relock
Where you can get
Relock binds each session to the legitimate device.
It uses a system of cryptographic keys that are deployed directly to the browser, invisibly to the user and without any interaction. Any attack that attempts to replay session material is stopped and immediately detected.
Full prevention and direct visibility
Relock enforces trust
at each step of a sessionRelock enforces trust
at each step of a session
Relock cryptographically binds each session to the device, preventing attackers from weaponizing stolen tokens.Relock cryptographically binds each session to the device,
preventing attackers from weaponizing stolen tokens.
A system of cryptographic keys
Relock issues each browser a cryptographic anchor of trust that cannot be reused or replayed. The keys are verified by Relock server at access and throughout the entire user journey.
Enabled invisibly for all users
The system is deployed server-side only, with no changes to the application. User adoption is instantaneous and requires no separate installs, browser extensions, or education.
Verified on every request
Trust is continuously renewed and validated at each request. The cryptographic keys change each time they are used, not relying on static secrets and ensuring inevitable attack detection even if compromised.
Skip the demo, dive right in
Get familiar with Relock
Log in to a Relock-protected application.
It is an open space for defenders to see session security in action, run real-world attack scenarios, and test your apps.
End session attacks
with one solution
For any user, app, browser.
Invisibly.