Dashlane vs ExpressKeys Comparison

• Premium (individual, 1-year): $59.88 per year
• Friends & Family (10 members, 1-year): $89.88 per year

White-box design and cryptographic-trust-assumption review plus dynamic penetration testing and source-code audit of the ExpressKeys Android and iOS apps and their shared Rust core. Five senior testers, sixteen days. Backend components and third-party dependency analysis were out of scope.

The vault is encrypted client-side with AES-256 in CBC mode plus HMAC-SHA256 — an encrypt-then-MAC construction, so tampering with the ciphertext is detectable. The key is derived from the master password with Argon2d (3 iterations, 32 MB memory, 2 threads); PBKDF2 remains only as a backward-compatibility fallback that Dashlane says it will deprecate in 2026. All vault fields are encrypted, including usernames, item URLs and notes — not just passwords. Support for legacy CBC-only mode was removed in November 2025.

The vault is protected by a symmetric document key, itself wrapped by a root key derived from your vault password via PBKDF2-HMAC-SHA512 at 210,000 iterations. Cure53's March 2026 audit flagged this as GPU-crackable and recommended a memory-hard function (Argon2id or scrypt) instead.

The product is run by Dashlane, Inc.; the brand and trademarks belong to Dashlane SAS, France. The company is independent and venture-backed — it has raised over $200M across five rounds, the last a $110M Series D led by Sequoia Capital in May 2019, with Bessemer Venture Partners, FirstMark Capital and Rho as earlier backers. It has not been acquired. Dual headquarters in New York and Paris.

ExpressVPN (and ExpressKeys as one of its products) is registered in the British Virgin Islands and has been part of Kape Technologies plc (LSE-listed, ultimate beneficial owner Teddy Sagi) since September 2021.