I just came across heartbleed. It's a painful CVE. Upgrade time If you have software that offers SSL/TLS using OpenSSL.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0160
https://www.mattslifebytes.com/?p=533
https://www.michael-p-davis.com/using-heartbleed-for-hijacking-user-sessions/
Scanning a subset of popular KE sites show that most are not vulnerable thanks to IIS/OWA. However, a few .go.ke and .co.ke SSL sites are leaking website code, cookies and god forbid private keys.
Cheers,
Laban