Accountants and tax professionals are responsible for a vast amount of their clients’ financial information – and as hackers proliferate and become more sophisticated in the methods they use to steal that information, it’s more important than ever to protect it.

With that in mind, Nastassja Tejada, head of sales in the Accountant Advisor Program at online small-business lender OnDeck, suggested these seven tips for protecting your clients’ data, whether they’re individuals or businesses. (A text version of these tips is available.)