active
The DeepSeek R1 update proves it’s an active threat to OpenAI and Google
This week, DeepSeek released an updated version of its R1 model on HuggingFace, reigniting the open-source versus closed-source competition. The updated version, called DeekSeek-R1-0528, has 685 billion parameters, an upgrade from January’s version, which had 671 billion. Unlike OpenAI and Google’s models, which are famously closed-source, DeepSeek’s model weights are publicly available. According to the benchmarks,…
It takes two: The 2025 Sophos Active Adversary Report
The Sophos Active Adversary Report celebrates its fifth anniversary this year. The report grew out of a simple question: What happens after attackers breach a company? Knowing the adversary’s playbook, after all, helps defenders better battle an active attack. (There’s a reason we started life as “The Active Adversary Playbook.”) At the same time we…
The Bite from Inside: The Sophos Active Adversary Report
It’s not news that 2024 has been a tumultuous year on many fronts. For our second Active Adversary Report of 2024, we’re looking specifically at patterns and developments we noted during the first half of the year (1H24). Though the year itself was in many ways unremarkable on the surface for those charged with the…
Power Tips #136: Design an active clamp circuit for rectifiers at a high switching frequency
Introduction In vehicle electrical systems, a high- to low-voltage DC/DC converter is a reversible electronic device that changes the DC from the vehicle’s high-voltage (400 V or 800 V) battery to a lower DC voltage (12 V). These converters can be unidirectional or bidirectional. Power levels from 1 kW to 3 kW are typical, with…
Power Tips #136: Design an active clamp circuit for rectifiers at a high switching frequency
Introduction In vehicle electrical systems, a high- to low-voltage DC/DC converter is a reversible electronic device that changes the DC from the vehicle’s high-voltage (400 V or 800 V) battery to a lower DC voltage (12 V). These converters can be unidirectional or bidirectional. Power levels from 1 kW to 3 kW are typical, with…