TL;DR: Public Wi-Fi remains widely used for travel and remote work, but the article shows that weak or absent encryption, MITM attacks, fake hotspots, and unsafe browsing habits can expose personal and corporate data, according to Jscrambler. The security problem is not convenience itself, but the false assumption that open networks are safe enough without compensating controls.
NHIMG editorial — based on content published by Jscrambler: Public Wi-Fi risks and how to stay safe
By the numbers:
- 31% of American travelers use public Wi-Fi while traveling within the U.S., 10% while abroad, and 59% in both scenarios.
- 24.7% of public hotspots worldwide do not use any form of encryption.
- 67% of reported incidents took place on planes, 59% at airports, and 52% in cafés or on public transportation.
Questions worth separating out
Q: How should security teams handle public Wi-Fi risk for remote users?
A: Treat public Wi-Fi as an untrusted environment and make access conditional on stronger verification.
Q: Why do public hotspots create more access risk than most users realise?
A: Because the network can be fake, shared, or unencrypted, and the user has little way to verify who controls it.
Q: What breaks when users rely on auto-connect on public Wi-Fi?
A: Auto-connect can place a device onto a spoofed or compromised network without the user noticing, which removes the human check that would otherwise catch a fake hotspot.
Practitioner guidance
- Classify public networks as untrusted access conditions Update remote access and SaaS policies so logins from public Wi-Fi trigger stricter checks, especially for finance, admin, and sensitive collaboration tools.
- Disable auto-connect on user devices Require endpoint teams to turn off automatic joining for remembered networks and to prompt users before connecting to any open hotspot.
- Enforce secure transport and step-up controls Require HTTPS-only browsing, VPN use where appropriate, and step-up authentication when the device is on an untrusted network or the network cannot be verified.
What's in the full article
Jscrambler's full article covers the practical user guidance and risk scenarios this post intentionally leaves for the source:
- User-facing examples of how fake hotspots and public-network attacks are set up in real travel environments
- Step-by-step advice for checking network names, disabling auto-connect, and avoiding sensitive activity on open Wi-Fi
- Plain-language explanations of HTTPS, VPNs, and file-sharing settings for non-specialist readers
- Traveller-focused safety guidance that can be adapted into internal security awareness material
👉 Read Jscrambler's analysis of public Wi-Fi threats and safer browsing habits →
Public Wi-Fi risk: what practitioners should actually do?
Explore further
Public Wi-Fi is a trust-collapse problem, not just a connectivity problem. The article shows that users routinely make access decisions in places where network provenance is weak and attacker proximity is high. That means security teams should stop treating public connectivity as an edge case and instead model it as a recurring exposure path for identity, session, and data theft. The operational conclusion is simple: trust must be re-established before access is granted, not after the device is already online.
A question worth separating out:
Q: Who is accountable when sensitive data is accessed over public Wi-Fi?
A: Accountability is shared, but the security team owns the policy, the endpoint team owns device controls, and the business owns user compliance. In regulated environments, the organisation must show that it assessed the risk, defined protected-use rules, and enforced controls for remote access and sensitive transactions.
👉 Read our full editorial: Public Wi-Fi risk is still being underestimated by users