We are Fanatical About Protecting Your Privacy.

KeeperChatTM utilizes best-in-class security to safeguard your messages and attachments.

Keeper's Best-In-Class Security

  • Private Master Password

    ONLY the user has knowledge of and access to their Master Password and key that is used to encrypt and decrypt their information.

  • Strongest Encryption

    Keeper protects your information with AES 256-bit encryption and PBKDF2, widely accepted as the strongest encryption available.

  • Multi-Factor Authentication

    Keeper supports multi-factor authentication, biometric login and Keeper DNA which uses personal devices like your smartwatch to confirm your identity.

  • Deep-Level Encryption

    User data is encrypted and decrypted at the device level not on Keepers servers or in the cloud.

  • Secure/Reliable Cloud Vault

    Keeper Security, Inc. utilizes Amazon AWS to host and operate the KeeperChat architecture providing customers with the fastest and safest messaging solution.


Keeper Security, Inc. (KSI or Keeper) is passionate about protecting its customer’s information with KeeperChat mobile and desktop security software.
KeeperChat was created by Keeper Security, Inc., the creators of Keeper, the world’s leading password manager and secure digital vault. Millions of consumers and businesses trust Keeper to secure and access their passwords, messages and private information.

Keeper’s software is constantly improved and updated to provide our customers with the latest in technology and protection. This page provides an overview of Keeper’s security architecture, encryption methodologies and hosting environment as of the current published version. An overview into the technical details involving our encryption and security methods are described in this document.

Data Protection

Keeper Security is a zero-knowledge security provider. The KeeperChat user is the only person that has full control over the encryption and decryption of their data. With KeeperChat, encryption and decryption occurs at the user’s device and is securely transported from the user's app to KeeperChat’s Cloud Security Vault. The encryption key that is needed to decrypt your data always resides with the KeeperChat user. KSI cannot decrypt or view your KeeperChat messages, including any file attachments such as photos or videos.

KSI does not have access to your master password nor does KSI have access to the records stored within the KeeperChat vault. KSI cannot remotely access your devices nor can it decrypt your KeeperChat vault. The only information that Keeper Security has access to is your email address, device type and subscription plan details. If your device is lost or stolen, KSI can assist in accessing encrypted backup files to restore your KeeperChat vault once you have replaced your device.

Information that is stored and accessed in KeeperChat is only accessible by the customer because it is instantly encrypted and decrypted on-the-fly on the device that is being used - this applies to both mobile and desktop devices. The method of encryption that Keeper uses is a well-known, trusted algorithm called AES (Advanced Encryption Standard) with a 256-bit key length. Per the Committee on National Security Systems publication CNSSP-15, AES with 256-bit key-length is sufficiently secure to encrypt classified data up to TOP SECRET classification for the U.S. Government.

The cipher keys used to encrypt and decrypt customer records are not stored or transmitted to Keeper's Cloud Security Vault. However, to provide syncing abilities between multiple devices, an encrypted version of this cipher key is stored in the Cloud Security Vault and provided to the devices on a user's account. This encrypted cipher key can only be decrypted on the device for subsequent use as a data cipher key.

Strong Master Password

It is highly recommended that customers choose a strong Master Password for their KeeperChat account. This Master Password should not be used anywhere outside of KeeperChat. Users should never share their Master Password with anyone.

Two-Factor Authentication

To protect against unauthorized access to a customer’s account, KeeperChat offers Two-Factor Authentication. Two-factor authentication is an authentication method that requires two or more of the three authentication factors: a knowledge factor, a possession factor and an inherence factor. In other words, it’s based on something you know, something you have and something you are. For more information on Two-Factor Authentication see this link.

KeeperChat uses something you know (your password) and something you have (the phone in your possession) to provide users extra security in the case where your master password or device is compromised. To do this, we generate TOTPs (Time-based One-Time Passwords).

KeeperChat generates a 10-byte secret key using a cryptographically secure random number generator. This code is valid for about a minute, and is sent to the user by SMS or Google/Microsoft Authenticator (TOTP).

When using the Google Authenticator or other TOTP application on your mobile device, the KeeperChat server internally generates a QR code containing your secret key and it is never communicated to a third party. Each time a user deactivates and then reactivates Two-Factor Authentication, a new secret key is generated.

To activate Two-Factor Authentication, visit the Settings screen.

Client Encryption

Data is encrypted and decrypted on the user's device, not on the Cloud Security Vault. We call this "Client Encryption" because the client (e.g. iPhone, Android Device, etc.) is doing all of the encryption work. The Cloud Security Vault stores a raw binary which is essentially useless to an intruder. Even if the data is captured when it's transmitted between the client device and Cloud Security Vault, it cannot be decrypted or utilized to attack or compromise the user's private data.

Breaking or hacking a symmetric 256-bit key would require 2128 times the computing power of a 128-bit key. In theory, this would take a device that would require 3×1051 years to exhaust the 256-bit key space.


Each user has a 2048-bit RSA key pair that is used for sharing records and messages between users. Shared information is encrypted with the recipient's public key. The recipient decrypts the shared information with their private key. This allows a user to share records only with the intended recipient, since only the recipient is able to decrypt it.

Key Generation

KeeperChat uses PBKDF2 with HMAC-SHA256 to convert a password to a 256-bit encryption key with up to 100,000 rounds. PBKDF2 iterations are based on the device platform and managed by the user in KeeperChat's 'Advanced Settings' screen. Iterations can also be enforced by the KeeperChat Business administrator.

Key Storage

All secret keys that must be stored (such as each user's RSA private key and the Data Key), are all encrypted prior to storage or transmission. The user's Master Password is required to decrypt any keys. Since Keeper's Cloud Security Vault does NOT have access to the user's Master Password, we cannot decrypt any of your keys or data.

Cloud Security Vault

The Cloud Security Vault refers to KSI's proprietary software and network architecture that is physically hosted within Amazon Web Services (AWS) infrastructure.

When the user synchronizes their KeeperChat vault with other devices on their account, the encrypted binary data is sent over an encrypted SSL tunnel and stored in KeeperChat's Cloud Security Vault in encrypted format.

Network Architecture

Keeper Security, Inc. utilizes Amazon AWS to host and operate the KeeperChat solution and architecture. Utilizing Amazon AWS allows Keeper to seamlessly scale resources on-demand and provide customers with the fastest and safest cloud storage environment. KSI operates both multi-zone and multi-region environments to maximize uptime and provide the fastest response time to customers.

Server Authentication

To prevent unauthorized vault access, KeeperChat's Cloud Security Vault must authenticate each user when transmitting data. Authentication is performed by comparing a PBKDF2-generated hash of the Master Password. The user's device uses PBKDF2 to generate the hash from the Master Password and the server compares the hash to a stored hash.

By using the PBKDF2 hash instead of the Master Password itself, the Cloud Security Vault authenticates the user without requiring the Master Password. PBKDF2 is also used for generating encryption data keys, but the authentication hash is not used for data encryption.

Transport Layer Encryption

KSI supports 256-bit and 128-bit SSL to encrypt all data transport between the client application and KSI's cloud-based storage. This is the same level of encryption trusted by millions of individuals and businesses everyday for web transactions requiring security, such as online banking, online shopping, trading stocks, accessing medical information and filing tax returns.

KSI deploys SSL/TLS certificates signed by Digicert using the SHA2 algorithm, the most secure signature algorithm currently offered by commercial certificate authorities. SHA2 is significantly more secure than the more widely used SHA1, which could be exploited due to mathematical weakness identified in the algorithm. SHA2 helps protect against the issuance of counterfeit certificates that could be used by an attacker to impersonate a website.

KSI also supports Certificate Transparency (CT), a new initiative by Google to create a publicly auditable record of certificates signed by certificate authorities. CT helps guard against issuance of certificates by unauthorized entities. CT is currently supported in the latest versions of the Chrome web browser. More information about Certificate Transparency can be found at: http://www.certificate-transparency.org/

Key Pinning

KeeperChat's native clients implement HTTP Public Key Pinning (HPKP). HPKP is a security mechanism which allows HTTPS websites to resist impersonation by attackers using fraudulent certificates.

iOS Keychain, Touch ID® and Face ID®

Touch ID on iOS devices allows you to access your KeeperChat vault on your iOS device using your fingerprint. To provide this convenient feature, an unintelligible version of your Master Password is stored in the iOS Keychain. The iOS Keychain item created for this functionality is not designated to synchronize to the iCloud Keychain and thus will not leave your iOS mobile device.

It is highly recommended that you use a complex Master Password and enable Multi-factor authentication in order to provide maximum security for your encrypted KeeperChat Vault. Using Touch ID makes it more convenient to use a complex Master Password on your iOS mobile device. It is also recommended that you set a passcode longer than the minimum 4-digits to secure the iOS Keychain.

The iOS Keychain is used by iOS and apps to securely store credentials. iOS apps use the iOS Keychain to store a variety of sensitive information, including website passwords, keys, credit card numbers and Apple Pay™ information. KeeperChat does not use the iOS Keychain to store your KeeperChat records - all KeeperChat records are protected with 256-bit AES encryption and are securely stored in the KeeperChat Vault. The iOS Keychain is also encrypted with 256-bit AES encryption using the device's passcode. Even if the device is lost or stolen or an attacker obtains physical access to the mobile device, they will be unable to access any stored KeeperChat information. The iOS Keychain cannot be decrypted without the passcode and the KeeperChat Vault cannot be decrypted without the user's KeeperChat Master Password.

Apple Watch® and Android Wear

The Apple Watch Favorite feature allows the viewing of selected records on a paired Apple Watch. Keeper records must be explicitly enabled to allow viewing on the Apple Watch. A paired Apple Watch communicates with the Keeper Watch Extension that transparently runs in a sandboxed space separate from the iOS Keeper App. The Keeper Watch Extension also uses iOS Keychain to securely store and access keys to enable it to seamlessly and securely communicate with the iOS KeeperChat app.

Keeper DNA®

Keeper DNA is a new and innovative addition to multi-factor authentication. When used with a paired Apple Watch or Android Wear device, Keeper DNA provides a multi-factor authentication method that is unparalleled in convenience and security. These time-based authentication requests can be approved and sent automatically from the Apple Watch or Android Wear device with a tap on the screen of the watch or entered manually by the user. Multiple layers of encryption, biometric ID and multi-factor authentication help make Keeper DNA the most elegant, secure and advanced authentication method available.

Compliance & Audits

Certified SOC2 Compliant
Customer vault records are protected using stringent and tightly monitored internal control practices. Keeper is certified as SOC 2 Type 2 compliant in accordance with the AICPA Service Organization Control framework. SOC2 certification helps ensure that your vault is kept secure through the implementation of standardized controls as defined in the AICPA Trust Service Principles framework.
GDPR Compliance

Keeper is committed to making changes and improvements to our business processes and products to ensure that we will be ready for GDPR by May 25, 2018. Click here to learn more about Keeper's GDPR compliance and download data processing agreements.

Penetration Testing

Keeper performs periodic pen testing with 3rd party experts including Secarma, Rhino Security and independent security researchers against all of our products and systems. Keeper has also partnered with Bugcrowd to manage its vulnerability disclosure program (VDP).

Third-Party Security Scanning & Penetration Tests

KSI is tested daily by McAfee Secure to ensure that the KeeperChat desktop application and KSI’s Cloud Security Vault are secure from known remote exploits, vulnerabilities and denial-of-service attacks. Secure badges may be found on the Keeper website to verify daily testing of the KeeperChat website, Web application and Cloud Security Vault.

A comprehensive external security scan is conducted monthly on the KeeperChat website, KeeperChat desktop application and KeeperChat Cloud Security Vault by Trustwave. Keeper’s staff periodically initiate on-demand external scans through Trustwave.

Payment Processing and PCI Compliance

The KSI uses PayPal Payments Pro for securely processing credit and debit card payments through the KSI payment website. PayPal Payments Pro is PCI-DSS compliant transaction processing solution.

KSI is certified PCI-DSS compliant by Trustwave.

EU Safe Harbor

The KeeperChat desktop client, Android App, Windows Phone App and iPhone/iPad App have been certified EU Safe Harbor compliant with the U.S. Department of Commerce’s EU-U.S. Safe Harbor program, meeting the European Commission’s Directive on Data Protection. For more information about the U.S. Department of Commerce U.S.-EU Safe Harbor program, see https://www.export.gov/safeharbor

U.S. Department of Commerce Export Licensed Under EAR

Keeper is certified by the U.S. Department of Commerce Bureau of Industry and Security under Export Commodity Classification Control Number 5D992, in compliance with Export Administration Regulations (EAR). For more information about EAR: http://www.bis.doc.gov

24x7 Remote Monitoring

Keeper is monitored 24x7x365 by a global third-party monitoring network to ensure that our website and Cloud Security Vault are available worldwide.

Phishing or Spoofed Emails

If you receive an email purporting to be sent from KSI and you are unsure if it is legitimate, it may be a “phishing email” where the sender’s email address is forged or “spoofed”. In that case, an e-mail may contain links to a website that looks like KeeperChat.com but is not our site. The website may ask you for your KeeperChat master password or try to install unwanted software on your computer in an attempt to steal your personal information or access your computer. Other emails contain links that may redirect you to other potentially dangerous websites. The message may also include attachments, which typically contain unwanted software called “malware.” If you are unsure about an email received in your inbox, you should delete it without clicking any links or opening any attachments.

If you wish to report an e-mail purporting to be from KSI that you believe is a forgery or you have other security concerns involving other matters with KSI, please contact us.

Hosting Infrastructure Certified to the Strictest Industry Standards

The KeeperChat website and cloud storage runs on secure Amazon Web Services (AWS) cloud computing infrastructure. The AWS cloud infrastructure which hosts Keeper’s system architecture has been certified to meet the following third-party attestations, reports and certifications:

  • SOC 1 / SSAE 16 / ISAE3402 (SAS70)
  • SOC 2
  • SOC 3
  • PCI DSS Level 1
  • ISO 27001
  • FedRamp
  • ITAC
  • ITAC
  • CSA
  • MPAA

Vulnerability Reporting and Bug Bounty Program

Keeper Security is committed to the industry best practice of responsible disclosure of potential security issues. We take your security and privacy seriously are committed to protecting our customers’ privacy and personal data. KSI’s mission is to build world’s most secure and innovative security apps, and we believe that bug reports from the worldwide community of security researchers is a valuable component to ensuring the security of KSI’s products and services.

Keeping our users secure is core to our values as an organization. We value the input of good-faith hackers and believe that an ongoing relationship with the hacker community helps us ensure their security and privacy, and makes the Internet a more secure place. This includes encouraging responsible security testing and disclosure of security vulnerabilities.


Keeper's Vulnerability Disclosure Policy sets out expectations when working with good-faith hackers, as well as what you can expect from us.

If security testing and reporting is done within the guidelines of this policy, we:

  • Consider it to be authorized in accordance with Computer Fraud and Abuse Act,
  • Consider it exempt from DMCA, and will not bring a claim against you for bypassing any security or technology controls,
  • Consider it legal, and will not pursue or support any legal action related to this program against you,
  • Will work with you to understand and resolve the issue quickly, and
  • Will recognize your contributions publicly if you are the first to report the issue and we make a code or configuration change based on the issue.

If at any time you are concerned or uncertain about testing in a way that is consistent with the Guidelines and Scope of this policy, please contact us at security@keepersecurity.com before proceeding.

To encourage good-faith security testing and disclosure of discovered vulnerabilities, we ask that you:

  • Avoid violating privacy, harming user experience, disrupting production or corporate systems, and/or destroying data,
  • Perform research only within the scope set out below, and respect systems and activities which are out-of-scope,
  • Contact us immediately at security@keepersecurity.com if you encounter any user data during testing, and
  • You give us reasonable time to analyze, confirm and resolve the reported issue before publicly disclosing any vulnerability finding.

Submitting a Report

Keeper has partnered with Bugcrowd to manage our vulnerability disclosure program. Please email security@keepersecurity.com or support@bugcrowd.com to request access to the program.