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Slack vs Wire: Which Ensures Better Encryption for Teams?

Explore how US-based Slack and Switzerland's Wire prioritize end-to-end encryption to keep your team's communications secure.

Last updated: February 6, 2026โ€ขReviewed by Built in EU Team

Should You Switch to Wire?

What You Gain

Gain end-to-end encryption and stronger data protection with Wire.

Privacy advantage
Trade-offs

May lose advanced project management tools and integrations.

Slack has more features
Bottom Line

Switch if privacy is a priority; stay with Slack for advanced features.

At a Glance

Data Location
๐Ÿ‡บ๐Ÿ‡ธUS

US data laws

๐Ÿ‡จ๐Ÿ‡ญCH

GDPR protected

Pricing

Slack

Contact

Wire

freemium

Migration
Medium difficulty~Several hours to a few days, depending on workspace size and complexity

Privacy & Compliance Comparison

Critical data sovereignty factors at a glance

CriteriaSlackWire
Server Location
US (AWS), EU (optional)EU
GDPR Compliance
FullFull
Open Source
E2E Encryption
Enterprise onlyAll plans
Data Portability
Full exportFull export

CLOUD Act Notice

Slack is a US company and must comply with CLOUD Act data requests, even for data stored in EU data centers. Wire is not subject to US jurisdiction.

Switching from
Slack logo

Slack

๐Ÿ‡บ๐Ÿ‡ธ

Salesforce

VS
Switching to
Wire logo

Wire

๐Ÿ‡จ๐Ÿ‡ญ

Wire

US Data Storage

Data subject to US CLOUD Act and may be accessed by US authorities

EU Data Protection

Data protected under GDPR with EU-only data residency

Certifications & Compliance

No certifications listed

EU-Based
GDPR Compliant
Open Source
Self-Hostable
Swiss hosted

Reasons to Switch

  • โœ“End-to-end encryption ensures messages are secure from unauthorized access.
  • โœ“GDPR compliance means better data protection for EU users and organizations.
  • โœ“Self-hosted deployment option allows for greater control over data management.
  • โœ“Integrated video conferencing supports up to 10 participants in a call.

Things to Consider

  • !Migration from Slack may require significant time and resources.
  • !Missing advanced project management tools found in Slack's ecosystem.
  • !Learning curve for users accustomed to Slack's interface and features.
Migration difficulty:
Medium
~Several hours to a few days, depending on workspace size and complexity

Migration Overview

Full guide
Difficulty
Medium
Time Estimate
~Several hours to a few days, depending on workspace size and complexity

Depends on data size and complexity

Quick Steps

1

Create Wire account and configure settings

2

Export and prepare data from Slack

3

Import data, test integrations, and migrate users

Other alternatives to Slack

Ready to make the switch?

Start using Wire today and take control of your data privacy.