Are you geo-blocking traffic from Russia? Do you consider geo-blocking to be an effective method?

We're not geo-blocking traffic from Russia at the moment, mainly because a targeted attack would be bounced via another territory so it wouldn't be effective. 

Yes we do block, however the system is not prefect and can easily be bypassed. IPV6 makes matters more complicated. People who access from business system with internet breakout all over the world can easily get caught up as a false positive. Mobile data networks can also be problematic as their actual point of presence is hard to confirm.

We are not geo-blocking traffic.  We use other tools to protect ourselves.  Geo-blocking can be effective in the right type of organisation.  Each organisation should do its own risk assessment before embarking on each type of protection.  What may be effective for one company may give false hope to another.

Currently no. Not blocking. I have always found geo blocking to be more like a sign which says "no entry". If someone really wants to get around it they will. But i can understand why some people do though. A layered approach to security is never a bad thing!

Yes, we are geo-blocking any country which we do not do business with. It is a good first step for us to block unwanted and suspicious activity to our tenant.