**The BCL’s primary objective is to avoid ‘false positives’ while blocking as much malicious traffic as possible.**
* BCL false positives are extremely rare.
* Since BCL is a subset of SBL, **every** BCL listing is based on an investigation by one of the Spamhaus SBL team members.
* BCL does not contain any automated listings: all listings on BCL have been issued and reviewed by a human.