Hi, I am happy to announce the first TBBs that are built with Address Sanitizer (ASan) hardening. See: https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer for some material explaining what it does and what it defends against. These builds are nightlies and currently available for 64bit Linux systems. I've uploaded one to https://people.torproject.org/~gk/testbuilds/asan/20140521/ If there are builds needed in different locales let me know. For some testing remarks or even instructions on building such bundles oneself see https://bugs.torproject.org/10599#comment:15 Feedback and testing is, of course, very welcome. Georg