It took a few weeks to get confirmation on this, but we now have word from sources familiar with the matter that Matt Weiss is indeed leaving KBS+P (or KBS+ as the kids call it nowadays). Weiss has spent the last two-and-a-half years as chief of staff at the MDC-owned, New York-based agency, but from what sources tell us, he is parting ways with KBS+ for a gig at Havas. Our sources add, though, that Weiss won’t officially join the latter agency until Feb. 1 (no word yet on what his new position will be).

Prior to KBS+, Weiss spent nearly 15 years at McCann Worldgroup, last serving as EVP/chief growth officer. During his lengthy stint at the latter network,the exec held senior level positions including group account director for Coca-Cola North America and worldwide account director for MasterCard.

In other KBS+ news, the agency has recently welcomed Michael Dory to the fold as executive director of technology, a position that also calls for him to lead the engineering practice of the Spies & Assassins unit. In addition to Dory’s hiring, KBS+ also promoted Christine Prins to head of business development.