Bicom is a data compressor in the PPM family. It is freely available and open source. Compression with bicom is completely bijective -- any file is a possible bicom output that can be decompressed, and then recompressed back to its original form. Of course, any file is also a possible bicom input that can be compressed, and then decompressed back to its original form.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.