Looks like someone used my keys for MapQuest for DDOS attack or some other use. While we are using "Open" versions of geocoder and router, someone used their regular geocoding and directions service. As a result, instead of ~150 calls by Pure Maps users, 16000 were done in addition wiping out monthly quota.

Osmo, MartinK: has something like it happened for you?

For now, please use some other service for routing and search.

I would prefer not to think about how to start securing the keys and focus on other aspects. Right now they are available as a part of the source, but that has been like that for other projects as well.