You can secure communications between a client and the IQ server or between an IQ client and the database server using transport-layer security (TLS).
Database file encryption for Sybase IQ databases is similar to that of SQL Anywhere databases as described in SQL Anywhere Server – Database Administration on the Sybase Product Manuals web site. Sybase IQ also allows you to encrypt columns, as documented in Advanced Security in Sybase IQ.
Support of FIPS encryption, Kerberos authentication, and column encryption is included in the separately licensed Sybase IQ Advanced Security Option, which is described in Advanced Security in Sybase IQ.