Bitwarden vs 1Password for CMMC, practice by practice

Bitwarden vs 1Password, practice by practice

Rows inside the boundary are what the CMMC practices ask of a vault that protects your CUI environment; the FedRAMP row binds only if CUI goes in. Rows outside it are conveniences. Vendor words were read on each vendor's own pages, FedRAMP in the Marketplace data and FIPS on NIST's certificate list, all on 2026-11-02; click a vendor name for its notes.

Is Bitwarden or 1Password FedRAMP authorized?

No. We searched the FedRAMP Marketplace's own data on 2026-11-02 for both names and for AgileBits, the company behind 1Password.

That is fine for most shops, because the vault only needs FedRAMP if CUI goes into it. A cloud vault that holds nothing but passwords for in-scope systems is a Security Protection Asset: it goes in your SSP and is assessed, but no FedRAMP test applies. The full scoping table is on password managers for CMMC.

FIPS is the other split. NIST SP 800-171 asks for FIPS-validated cryptography "when used to protect the confidentiality of CUI", and an assessment scores encryption without it 3 points down. NIST's list shows certificate #5507, the Bitwarden Cryptographic Module, at FIPS 140-3, Active, Level 1, until 2029-08-26. A search for AgileBits or 1Password finds no certificate. For a vault that holds passwords only, this row matters less; for a self-hosted vault that holds CUI, it is the reason to choose Bitwarden. Running your own server inside an enclave is how a small shop gets there.

Sign-in and access settings, by name

Your SSP has to say how each practice is met, and an assessor will ask to see the setting. Here is what each vendor calls it, so the sentence in your SSP matches the screen. Pick your vendor and print the sheet for the SSP binder. Bitwarden puts these policies and SSO on its Enterprise plan; 1Password puts them on Business.

SSO changes where the evidence lives. With 1Password's Unlock with SSO, members sign in through the identity provider instead of their account password and Secret Key. With Bitwarden, SSO signs members in and a separate decryption step opens the vault: the master password, a trusted device, or Key Connector, which Bitwarden offers only to self-hosted organizations. In both cases, show the assessor the multifactor rule in your identity provider as well as the vault's own policy, because that is where the sign-in happens.

If your Microsoft tenant is GCC High, ask either vendor in writing whether its SSO connects to it before you buy; neither page we read says. Which tenant you are on is laid out in GCC vs GCC High.

Audit logs an assessor can sample

NIST SP 800-171 asks you to "create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity" AU.L2-3.3.1. It sets no number of days. Your SSP names your own retention period, and the vault, or the SIEM it feeds, has to hold it.

If your SSP says you keep a year or less, either log covers it. If it says longer, Bitwarden's own copy does the job, while 1Password itself advises sending events to a SIEM through its Events Reporting. If an MSP already watches your logs, check its tool against the integration lists above: both name Huntress and Blumira, and 1Password also names Blackpoint Cyber and Todyl. Who runs that watch is covered in CMMC MSPs compared, and the SSP template has the line where the retention period goes.

Bitwarden Secrets Manager vs 1Password service accounts

The identification practice covers more than people: "Identify system users, processes acting on behalf of users, and devices" IA.L2-3.5.1. A nightly backup job, a script that pulls files to the CAM station, a deploy pipeline: each one signs in to something. If its password sits in a text file or under a person's name, the assessor sees a process you cannot trace to an identity. If your shop runs no scripts like these, skip this section.

Both give each script its own identity and a record of what it used, which is what the practice asks. The deciding question is the same as for the vault: if those scripts touch CUI systems and you want nothing in a vendor's cloud, Bitwarden is the one that runs on your own hardware. Put each machine account in your SSP's asset list with the system it signs in to.

The two, one by one

How we read the vendors

Questions small shops ask