Best Security & Privacy (2026)

Security and privacy software protects accounts, devices, and data from compromise. This category covers password managers that generate and store unique credentials; VPN services that encrypt traffic on untrusted networks; antivirus and endpoint protection for desktops and servers; encrypted messaging and email services; backup tools that keep copies safe from ransomware; and identity monitoring services that alert you to breaches. It also includes privacy-focused browsers, ad blockers, and secure file sharing. They are used by everyone from privacy-conscious individuals to IT administrators securing entire companies. Pricing is usually per-user annual subscription, often with family or team plans that lower the per-seat cost. Free tiers exist but are typically limited — security is one area where paid plans are the norm rather than the exception. Several established vendors run affiliate programs, particularly in the VPN and password manager space.

Auth0

Developer-friendly customer identity platform (by Okta) with authentication APIs, SSO, MFA and social login for web and mobile apps.

Bitwarden

Open-source password manager with free unlimited device sync, end-to-end encryption, and business plans with SSO and self-hosting options.

Duo

Cisco's multi-factor authentication and zero-trust access solution with push MFA, device health checks and SSO for the workforce.

free trial available

ExpressVPN

VPN service with servers in 105 countries, an audited no-logs policy, the Lightway protocol, and apps for desktop, mobile, routers and browsers.

from $2.99/mo

LastPass

Password manager with a free tier, encrypted vault sharing, dark web monitoring, and SSO and MFA for business teams.

free tier available

Malwarebytes

Antimalware software for Windows, Mac, Android and iOS that removes malware, blocks ransomware and phishing, and includes a VPN and browser guard.

NordVPN

VPN service with fast encrypted connections, thousands of servers in 115 countries, threat protection against malware and trackers, and apps for all major platforms.

Norton

Consumer cybersecurity suite with antivirus, VPN, password manager, identity theft protection and dark web monitoring.

from $39.99/yr (first year, Standard)

Okta

Identity and access management platform with SSO, MFA, lifecycle management and customer identity (CIAM) for enterprises.

Proton VPN

VPN from the makers of Proton Mail with a free tier, open-source apps, Secure Core servers, and a strict no-logs policy based in Switzerland.

free tier available

Qualys

Cloud-based vulnerability management, detection and response (VMDR) platform for continuous asset discovery, patching and compliance.

Surfshark

Affordable VPN with unlimited simultaneous devices, servers in 100+ countries, ad and tracker blocking, and antivirus and identity-protection add-ons.

Tenable

Exposure management platform (Tenable One, Nessus) for vulnerability assessment, cloud security and attack surface visibility.

Frequently asked questions

What is the best security & privacy AI tool?

Based on listings currently tracked on TechTool, Auth0 leads the Security & Privacy category — Developer-friendly customer identity platform (by Okta) with authentication APIs, SSO, MFA and social login for web and mobile apps. Rankings update as we verify more tools.

Are there free security & privacy AI tools?

Yes — 3 of the 18 security & privacy tools we track offer a free plan or free tier. Check each listing's pricing details.

How does TechTool rank security & privacy tools?

We rank by verified listing data — feature completeness, publicly stated pricing, and user ratings where available. Featured placements are marked and never affect editorial order.