Security & compliance

Signatures that hold up.

What SignLucid records, how it protects your documents, and what we don’t do yet.

Signatures that hold up

U.S. law (the federal ESIGN Act and each state’s version of UETA) treats an electronic signature like a handwritten one when the signing process shows four things. Here is how SignLucid covers each:

  1. Intent to sign. The signer adopts a signature (typed or drawn), places it spot by spot, reviews the document, and presses Submit. They can decline instead, and the sender is told.
  2. Consent to sign electronically. Before anything opens for signing, each signer reads an Electronic Record and Signature Disclosure and agrees to it.
  3. The signature is tied to the document. Each signature is placed on the PDF, every page carries the envelope number, and a certificate of completion is added at the end.
  4. A record you can keep. Signers and senders can download the signed PDF. The certificate lists each signer’s consent time, signing time, IP address, device, how they were verified, and the full event history, with SHA-256 fingerprints of the original and the signed copy.

A few documents can’t be signed electronically under these laws (for example wills, and certain family-law and court documents). If you’re unsure about a document, ask your attorney. E-signature laws: U.S., Mainland China, Hong Kong, Taiwan →

Certificate of completion

What every signed PDF ends with

Certificate of CompletionElectronic signature record kept with this document (ESIGN Act / UETA)
Completed
Envelope
SL-000128
Document
2025 Form 8879
Original SHA-256
9f2c…a71e
Authentication
Private signing link + access code
  1. Sent10/15/2026 2:02 PM UTC · to wei@example.com
  2. Opened10/15/2026 2:09 PM UTC · IP 203.0.113.24
  3. Consent to e-sign10/15/2026 2:10 PM UTC · agreed to use electronic records and signatures
  4. Signed10/15/2026 2:11 PM UTC · 2 fields · iPhone, Safari
  5. CompletedAll 2 signer(s) signed. Signed copy SHA-256 4b1e…d93c

Sample · names, times and fingerprints are illustrative

IRS forms

Encryption and accounts

How long we keep documents

Tax return information

Tax return information is protected by IRC §7216. SignLucid uses your documents only to provide the signing service to your firm. We never sell them, use them to market to anyone, or use them to train AI. Layout memory keeps only a page’s printed form words and field positions; client names are removed before anything is stored.

Who else handles your data

ProviderWhat forWhen
DigitalOceanServers, storage, backupsAlways
AnthropicAI guidance (the document)Only if your firm turns it on
PayPal / Venmo, banks (Zelle, checks)Paying for your subscriptionPaid plans

We’ll give 30 days’ notice before adding a provider that handles your documents. How we use AI →

What we don’t have yet

We list these openly so you know what is and isn’t available today: