1. A computer-implemented method for tokenizing data, comprising: accessing, by an input module of a tokenization system, a set of initialization vectors comprising a plurality of initialization vectors; tokenizing, by a tokenization engine of the tokenization system, first data using one or more initialization vectors from the set of initialization vectors to form first tokenized data; accessing, by the input module of the tokenization system, one or more updated initialization vectors in response to one or more of a detection of a security violation, an identity of a user associated with the first data, and a circumstance of tokenizing the first data; in response to a bandwidth available to the tokenization system being below a threshold bandwidth, replacing, by an update engine of the tokenization system, a subset of the set of initialization vectors with one or more updated initialization vectors to form an updated set of initialization vectors, the subset of initialization vectors including fewer initialization vectors than the set of initialization vectors; and tokenizing, by the tokenization engine of the tokenization system, second data using one or more initialization vectors from the updated set of initialization vectors to form second tokenized data.