Kaspersky Lab has found that 28 per cent of Wi-Fi networks are unsecured and poses a risk to users personal data. 25 per cent have no encryption or password protection of any kind. Another three per cent use WEP (Wired Equivalent Privacy) to encrypt data. This unreliable protocol can be cracked within minutes using tools that are freely available on the Internet. The effort required to hack these networks depends on the settings, including the strength of the password.”]
Source: https://informationsecuritybuzz.com/study-research/one-four-wi-fi-hotspots-just-waiting-hacked/