To deal with the increasing number of compromised blogs, WordPress 2.6 will turn off XML-RPC and AtomPUB interfaces by default.
MarsEdit developer Daniel Jalkut points out that the WordPress developers are ignoring the root cause:
If your web service only provides one, first-class API through which all access flows, then you’ve only got one point to secure, you’re likely to have feature parity across interfaces, and the risk of marginalizing one interface is dramatically decreased.
Related posts: