Samsung’s latest security patch, meant to shore up defenses, has instead ignited a firestorm among Galaxy owners. Reports of ferocious battery drain and unexplained overheating have surged since the April 2026 update rolled out. Devices that once powered through demanding days now gasp for charge by midday. And the culprit? Fingers point squarely at Knox Matrix, Samsung’s own security feature. It started quietly in South Korea on April 6, then spread globally. Galaxy S25 and S24 users watched their batteries plummet. One owner on Samsung’s community forum described a phone reaching zero after just two hours of use, while a Galaxy S24 user lamented less than three hours of life followed by a five-hour charge cycle. Overheating joined the fray, with devices warming during idle moments. Boom. Users flooded forums. Android Authority’s poll captured the scale: 76% of 2,114 voters confirmed the drain post-update, as detailed in their April 23 report . A follow-up survey there painted an even bleaker picture.…