Compliance conversations usually start in one of two bad places. Either nothing happens until a customer sends a security questionnaire, or a consultant arrives with a framework nobody asked whether you needed.
The one that is not optional
PIPEDA applies to almost every private-sector organisation in Canada that handles personal information in the course of commercial activity. It is law, not a certification, so there is nothing to pass. What it requires is that you can explain what personal information you hold, why, who can reach it, and what you would do if it were exposed. Most businesses can answer the first question and stall on the third.
The ones your customers ask for
SOC 2 and ISO 27001 are voluntary, and in practice they are customer-driven. An enterprise client or a public-sector buyer asks, and suddenly you need one. SOC 2 is an attestation by an auditor about controls over a period of time, and it is the usual answer in North American software and services. ISO 27001 certifies a management system rather than a point in time, and it travels better internationally.
Neither is inherently better. The right one is whichever your buyers keep asking for, and pursuing both at once is how small teams stall.
The one nobody plans for
Cyber insurance has quietly become the strictest framework most small businesses face. Renewal questionnaires now ask about multi-factor authentication, offline backups, endpoint detection and how quickly you patch. Answering optimistically is a bad idea, because the answers become part of the contract.
Where to start
Write down what you are actually bound by, what a customer has asked for in writing, and what your insurer requires at renewal. That list is almost always shorter than the one you would be sold, and the controls overlap heavily. Evidence gathered for one is usually evidence for the others.