LONDON — Researchers say some smaller, poorer nations are now using spy software, suggesting that recent data leaks and lawsuits have not deterred governments from investing in off-the-shelf cyberespionage products.

Internet watchdog group Citizen Lab said in a report Thursday that it had found 33 “likely government users” of FinFisher, one of the world’s best-known purveyors of spyware. A cyberattack against FinFisher last year exposed reams of client information and other confidential data, but the report’s lead author Bill Marczak says the company appears to have weathered the breach.

“They seem to have a healthy client base, despite the fact that they were hacked and customer data was exposed,” he wrote in an email. “Far from observing a drop in FinFisher servers, we’re detecting more than ever before.”