WPA2 is the security protocol that has been used with Wi-Fi systems since 2008 with no known vulnerabilities. However, a university researcher recently discovered a method to trick it into accepting a reused/known encryption key (KRACK), allowing data to be seen. This vulnerability was made public a few days ago, and you may have seen something about it on the news.
Yesterday, the manufacturer of the radios used in our park’s Wi-Fi systems released updated firmware (burned in software) that eliminates that vulnerability. All 56 of the access point and linking radios in the park’s Wi-Fi system have now been updated to the new version firmware. Similar software updates for all client devices (computers, tablets, ebook readers, cellphones, and the like) should be available shortly from their vendors, although older devices may not be supported any longer.
Our park’s Wi-Fi systems have been upgraded, but it is still up to the individual users to upgrade their device’s software (or allow them to be upgraded by the device’s vendor) for full protection from this newly discovered vulnerability.