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Lumma Infostealer – Down but Not Out?

By rohann@checkpoint.com

Excerpt

The takedown achieved a significant disruption to Lumma infostealers’ infrastructure, but likely didn’t permanently affect most of its Russia-hosted infrastructure.

Lumma’s developers are undertaking significant efforts to reinstate the activity and to conduct business as usual.

There seems to be a significant reputational damage to the Lumma infostealer, and the key factor for the infostealer to resume regular activity will be the reputational factors (rather than the technological). On May 21, 2025, Europol, FBI, and Microsoft, in collaboration with other public and private sector partners, announced an operation to dismantle the activity of th…

The opening of the report, shown for reference. The full report, with its figures and indicators, is published by Check Point on blog.checkpoint.com.

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