Trusted by banks and law firms around the world.

Secure. Trusted. Private.

SignNow follows both national and international security standards, including strict security policies that set the standard for information security.

We continuously take part in third-party audits and certifications to guarantee our customers receive a completely secure electronic signing experience.


Legal for signing contracts large & small.

Deron Williams of the NBA recently signed his $98M contract with the Brooklyn Nets using our iPad app. Check out the press here. We are also used by banks, lawyers, accountants, and others. Documents executed using SignNow have the same legal validity and enforceability as pen-and-paper contracts. SignNow complies with US and EU esignature law. You can use SignNow for your agreements with full confidence.

Secured by bank quality encryption.

Global Security Certifications

SignNow's data centers have achieved ISO/IEC 27001:2005 certification as an information security management system. This provides customer assurance that SignNow meets international standards on security.


Secure Data Centers

SignNow is hosted in state-of-the-art SSAE16 Type II SOC-1 facilities. The SSAE 16 supersedes and replaces the Statement on Auditing Standards or "SAS70" and utilizes both the private network and infrastructure with no resources shared with other providers.


Secure Application

Connection to the SignNow service is via 256-bit SSL 3.0/TLS 1.0 ensuring that users have a secure connection from their browsers to our service. Login information is always sent over SSL, which is why SignNow is always served over HTTPS. We conduct full code reviews annually and vulnerability mitigation conducted by qualified third parties. We keep a security consultant on retainer to help identify and prevent new attack vectors.


Information Audits

SignNow continuously examines and tests security and privacy controls by both internal security audits and qualified third parties.


Secure & Legal Transactions

SignNow complies with both Federal ESIGN Act and Gramm-Leach-Bliley Act (GLBA). Exported signed documents can be digitally sealed and verified for authenticity with a trusted third-party certificate authority. Detailed audit trails for each transaction include sender name and email address, timestamps, and originating IP address for each action.


Credit Card Safety

When you submit any payment on SignNow, we do not store any of your card information on our servers. We hand payments off to Braintree Payment Solutions, a company dedicated to storing your sensitive data on PCI-Compliant servers.


Exceptional Uptime

At SignNow, uptime is continuously monitored by the web's leading 3rd party monitoring service, Pingdom. Net uptime exceeds 99.9% and we always strive to improve on that number.


Contact Us

Have a question, concern, or comment about SignNow security? Please email us at support@signnow.com.


Need to report something?

We take security extremely seriously so please email us immediately at support@signnow.com. This email will go directly to one or more of the SignNow founders and executive team, and will receive our full attention. If we don’t respond immediately, there’s a good chance we’re trying to fix it first.

Get Started For Free
No credit card required.