Is HelloSign Secure? Security & Compliance Guide (2026)

Yes, HelloSign (now Dropbox Sign) secures your documents. It uses bank-grade encryption, holds SOC 2 Type II and ISO 27001 certifications, and complies with HIPAA and GDPR. As part of Dropbox, it leverages enterprise-grade security infrastructure.

Short Answer: Yes, HelloSign secures your documents. It uses bank-grade encryption, holds SOC 2 Type II and ISO 27001 certifications, and complies with HIPAA and GDPR. As part of Dropbox, it leverages enterprise-grade security infrastructure.

Security Overview

Security Area	HelloSign Approach
Encryption	AES 256-bit, TLS 1.2+
Infrastructure	Dropbox cloud infrastructure
Certifications	SOC 2, ISO 27001, HIPAA
Compliance	GDPR, ESIGN, UETA
Audit trails	Complete, tamper-evident

Encryption Standards

Data in Transit

Protocol	Standard
TLS	1.2 and higher
Encryption	AES 256-bit
Perfect forward secrecy	✅ Enabled

All data transmitted between users and HelloSign servers is encrypted.

Data at Rest

Feature	Details
Encryption	AES 256-bit
Key management	Secure practices
Storage	Encrypted databases
Backups	Encrypted

Documents stored in HelloSign are encrypted at rest.

Document Security

Feature	Protection
Digital signature	PKI-based
Tamper detection	Hash verification
Audit trail	Complete activity log
Access controls	Role-based

Security Certifications

SOC 2 Type II

Aspect	Details
What it is	Third-party security audit
Focus	Security, availability, confidentiality
Status	HelloSign certified
Parent company	Dropbox also certified

SOC 2 Type II certification means independent auditors have verified HelloSign's security controls.

ISO 27001

Aspect	Details
What it is	International security standard
Focus	Information security management
Status	Certified
Scope	Global operations

ISO 27001 demonstrates systematic security management.

Dropbox Infrastructure

As part of Dropbox:

Benefit	Details
Enterprise infrastructure	Proven at scale
Security team	Dedicated experts
Incident response	Established processes
Continuous monitoring	24/7 security

Compliance

HIPAA

Feature	Status
BAA available	✅ Yes (on eligible plans)
PHI handling	Compliant
Encryption	Meets requirements
Audit trails	HIPAA-ready
Access controls	✅

HelloSign can be used for healthcare documents with proper configuration.

Requirements:

Business plan or higher
Signed BAA
Proper handling procedures

GDPR

Feature	Status
Data processing	Compliant
Data subject rights	Supported
Data transfers	SCCs available
DPA available	✅
EU data handling	✅

HelloSign complies with European data protection requirements.

eIDAS

Feature	Status
Advanced e-signatures	Supported
EU recognition	✅
Legal validity	✅

HelloSign signatures are legally valid in the European Union.

Additional Compliance

Standard	Status
ESIGN Act	✅ Compliant
UETA	✅ Compliant
CFR Part 11	⚠️ Consult with HelloSign
PCI DSS	Via Dropbox

Authentication Options

Signer Verification

Method	Availability	Security Level
Email access	All plans	Basic
SMS verification	Paid plans	Medium
Password protection	✅	Medium
Knowledge-based auth	Enterprise	High

Account Security

Feature	Status
Two-factor authentication	✅ Available
SSO/SAML	Enterprise
Password requirements	Configurable
Session management	✅

Audit Trails

What's Captured

Event	Recorded
Document created	✅ Timestamp, user
Document sent	✅ Timestamp, recipients
Document viewed	✅ Timestamp, viewer
Document signed	✅ Timestamp, signer
IP address	✅ For each action
Device info	✅ Browser, OS

Certificate of Completion

Each completed document includes:

Information	Purpose
Request ID	Unique identifier
All events	Complete timeline
Timestamps	When actions occurred
IP addresses	Location verification
Authentication	How identity verified
Signature validity	Confirmation

Tamper Evidence

Feature	Protection
Hash verification	Detects modifications
Signed PDF	Embedded signature data
Audit log	Immutable record

Data Center Security

Physical Security

Measure	Details
Access control	Biometric + badge
Surveillance	24/7 monitoring
Location	Secure facilities
Redundancy	Multiple locations

Infrastructure

Feature	Details
Cloud provider	Dropbox infrastructure
Uptime	99.9%+ SLA
Disaster recovery	Geo-redundant
Network security	Multiple layers

Privacy Practices

Data Handling

Practice	Implementation
Data minimization	Collect only needed data
Purpose limitation	Used only as intended
Retention	Defined policies
Deletion	Upon request

Third-Party Access

Situation	HelloSign Policy
Subprocessors	Listed publicly
Government requests	Legal process required
Employee access	Limited, logged

Security Best Practices

For Administrators

Practice	Benefit
Enable 2FA	Additional security
Use SSO	Centralized control
Review access	Remove unused accounts
Set password policies	Stronger credentials
Monitor activity	Detect anomalies

For Users

Practice	Benefit
Use strong password	Account protection
Enable 2FA	Extra layer
Verify senders	Avoid phishing
Check document URLs	Ensure legitimate
Log out on shared devices	Prevent access

For Sensitive Documents

Practice	Benefit
Use SMS verification	Verify signer
Add password protection	Extra security
Review before sending	Ensure correct recipient
Download signed copies	Keep records

Comparison with Competitors

Security Features

Feature	HelloSign	DocuSign	SignNow
AES 256-bit	✅	✅	✅
SOC 2 Type II	✅	✅	✅
ISO 27001	✅	✅	✅
HIPAA	✅	✅	✅
FedRAMP	❌	✅	❌
21 CFR Part 11	⚠️	✅	✅

HelloSign has strong security, though DocuSign has additional certifications for regulated industries.

Common Security Questions

Can HelloSign employees see my documents?

Access is strictly limited. Employees only access data when required for support (with permission) or legal obligations. All access is logged.

What happens if Dropbox/HelloSign is breached?

Incident response procedures include:

Contain the breach
Notify affected users
Work with authorities
Remediate vulnerabilities

Neither Dropbox nor HelloSign has experienced a significant document breach.

Are documents encrypted in emails?

Email notifications contain links, not documents. Documents are accessed through secure, encrypted connections.

Can someone forge a HelloSign signature?

The combination of authentication, audit trails, and tamper detection makes forgery extremely difficult and easy to detect.

Is HelloSign more secure now that Dropbox owns it?

Yes, in some ways. HelloSign benefits from Dropbox's security infrastructure, expertise, and resources.

When HelloSign May Not Be Enough

Consider Alternatives For

Situation	Recommendation
FedRAMP required	DocuSign
21 CFR Part 11 critical	Consult specialists
Top-secret government	Specialized solutions
Maximum compliance	DocuSign

Frequently Asked Questions

Is HelloSign safe for legal documents?

Yes. HelloSign signatures are legally binding under ESIGN and UETA. The audit trail provides evidence if challenged.

Is HelloSign HIPAA compliant?

Yes, with proper setup. You need a Business plan or higher and a signed BAA (Business Associate Agreement).

Has HelloSign been hacked?

There have been no reported significant breaches of HelloSign customer documents.

Is HelloSign as secure as DocuSign?

For most uses, yes. DocuSign has additional certifications (FedRAMP) for government use. Both use similar encryption and security practices.

Should I trust HelloSign for financial documents?

Yes. HelloSign's security is sufficient for most financial documents. For highly regulated financial institutions, verify specific compliance requirements.

Conclusion

HelloSign is highly secure:

Security Aspect	Assessment
Encryption	Bank-grade (AES 256-bit)
Certifications	SOC 2, ISO 27001
Compliance	HIPAA, GDPR, eIDAS
Infrastructure	Dropbox enterprise
Audit trails	Complete, tamper-evident
Track record	No significant breaches

HelloSign is appropriate for:

Most business contracts
Healthcare (with BAA)
Financial documents
Legal agreements
Personal documents

Consider alternatives for:

FedRAMP requirements
Specific regulatory needs
Maximum possible certifications

Related resources:

Last updated: January 28, 2026