Overview
Its services are grouped into four areas: Managed Detection & Response (MDR), Infra & Cloud Security, Security Advisory and Identity Solutions. The company states it was founded in 2007 and serves more than 200 active customers. It has been ISO 27001 certified since 2022 and describes itself as vendor agnostic, working with partners including Palo Alto Networks, Microsoft Security, Google Security Operations, SentinelOne, Tenable, CyberArk and IBM. ACEN grew out of IS4U, an identity and access management firm that expanded into a broader cybersecurity offering. Within that leadership, Christophe Vereycken handled operations and Wouter Decruy financial strategy, while Jeffrey Van Vyve, who joined IS4U as sales manager, became Managing Partner responsible for sales and marketing in 2025. The company reports team growth of 20% per year and counted more than 100 people in July 2025. ACEN NV is registered under company number BE 1004.039.773. In February 2025 ACEN announced a partnership with Illumio for microsegmentation. ACEN MDR works with Google, SentinelOne and Silverfort. Reference customers include the Federaal Planbureau, for which ACEN delivers managed Microsoft 365 security and a 24/7 managed SOC.
Stated facts & numbers
- Founded: 2007
- Headquarters: Kontich (Antwerp)
- Employees: 51-200 (more than 100 in 2025)
- Customers: More than 200 active customers, including Federaal Planbureau
- Services: MDR, Infra & Cloud Security, Security Advisory, Identity Solutions
- Certification: ISO 27001 (2022)
- Company number: BE 1004.039.773
Key people
In the news
- Let’s do a little riddle: What do your 𝘄𝗲𝗯𝘀𝗶𝘁𝗲, your 𝗳𝗶𝗿𝗲𝘄𝗮𝗹𝗹 and the building’s 𝗮𝗶𝗿 𝗰𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻𝗶𝗻𝗴 have in common? 🌐🔥❄️ It might surprise you but quite possibly, the answer is 𝗣𝗛𝗣. When the #PHP vulnerabilities hit, most teams patched what they could see. But PHP also hides in places you might not expect: your firewall’s admin panel, the web interface of an industrial touch panel and the dashboard of a building management system. They don’t look like web apps, so they rarely get treated like
- Six in ten Flemish municipalities tested have no plan to keep their services running after a cyberattack. 📰 A new Audit Vlaanderen report found 𝟭,𝟴𝟵𝟵 𝘃𝘂𝗹𝗻𝗲𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 across 77 municipalities and 12 intermunicipal companies, 𝟯𝟱𝟯 𝗼𝗳 𝘁𝗵𝗲𝗺 𝗵𝗶𝗴𝗵-𝗿𝗶𝘀𝗸. Not a single authority was free of weak spots. In De Tijd, @𝗪𝗼𝘂𝘁𝗲𝗿 𝗗𝗲𝗰𝗿𝘂𝘆, 𝗠𝗮𝗻𝗮𝗴𝗶𝗻𝗴 𝗗𝗶𝗿𝗲𝗰𝘁𝗼𝗿 𝗮𝘁 𝗔𝗖𝗘𝗡, explains what’s behind these numbers: 1️⃣ AI uncovers flaws in older software faster than organisations can fix them,
- The #PHP 𝘃𝘂𝗹𝗻𝗲𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 that surfaced last week put many organizations on alert. Some experienced 𝗱𝗼𝘄𝗻𝘁𝗶𝗺𝗲, others spent days 𝗮𝘀𝘀𝗲𝘀𝘀𝗶𝗻𝗴 𝗲𝘅𝗽𝗼𝘀𝘂𝗿𝗲. But outages were only the tip of the iceberg, the part most people actually saw. 🏔️ The 𝗯𝗶𝗴𝗴𝗲𝗿 𝗶𝘀𝘀𝘂𝗲 was the 𝗿𝗶𝘀𝗸 𝗼𝗳 𝗲𝘅𝗽𝗹𝗼𝗶𝘁𝗮𝘁𝗶𝗼𝗻 underneath it all. Vulnerabilities such as PHP2Shell show how quickly a newly disclosed flaw can become a 𝗿𝗲𝗮𝗹-𝘄𝗼𝗿𝗹𝗱 𝘁𝗵𝗿𝗲𝗮𝘁. Or even a 𝘇𝗲𝗿𝗼-𝗱𝗮𝘆 when attackers get there
- Is your organization running on 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝟯𝟲𝟱? Then answer these questions honestly: 𝗔𝗿𝗲 𝗱𝗮𝗶𝗹𝘆 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀 𝗿𝘂𝗻𝗻𝗶𝗻𝗴 𝘀𝗺𝗼𝗼𝘁𝗵𝗹𝘆? Big chance you answer is yes. 𝗔𝗿𝗲 𝘁𝗵𝗲𝘆 𝗿𝘂𝗻𝗻𝗶𝗻𝗴 𝘀𝗲𝗰𝘂𝗿𝗲𝗹𝘆? Here possibly lies a big security blind spot. With #CyberSecMonth coming to a close, we want to leave you with some advice: 𝗸𝗲𝗲𝗽 𝘆𝗼𝘂𝗿 𝗠𝟯𝟲𝟱 𝗲𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁 𝗶𝗻 𝗰𝗵𝗲𝗰𝗸, 𝗮𝘀 𝘁𝗵𝗲𝘆 𝗰𝗮𝗻 𝗾𝘂𝗶𝗰𝗸𝗹𝘆 𝗯𝗲𝗰𝗼𝗺𝗲 𝘆𝗼𝘂𝗿 𝗯𝗶𝗴𝗴𝗲𝘀𝘁
- 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲 has a deadline. But 𝗿𝗲𝘀𝗶𝗹𝗶𝗲𝗻𝗰𝗲 doesn't. The first #DORA and #NIS2 deadlines are behind us. ✅Frameworks approved. ✅Registers submitted. ✅Incident procedures drafted. ✅Conformity assessments completed. 𝗦𝗼 𝘁𝗵𝗮𝘁 𝘄𝗮𝘀 𝗶𝘁. 🎉 *Dusts off hands* 𝗗𝗼𝗻𝗲? Not quite. Because the goal was never about hitting a deadline. 🎯 There has been a shift from checking whether your documents exist to checking 𝘄𝗵𝗲𝘁𝗵𝗲𝗿 𝘁𝗵𝗲𝘆 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝘄𝗼𝗿𝗸. Your dependencies change. So do your providers.
- 𝗙𝗿𝗼𝗺: CE0@mycompany.com 𝗧𝗼: You 𝙳𝚎𝚊𝚛, 𝚆𝚎 𝚌𝚕𝚘𝚜𝚎𝚍 𝚝𝚑𝚎 𝚖𝚒𝚐𝚛𝚊𝚝𝚒𝚘𝚗 𝚙𝚛𝚘𝚓𝚎𝚌𝚝 𝚠𝚒𝚝𝚑 𝚌𝚕𝚒𝚎𝚗𝚝 𝚇 𝚎𝚊𝚛𝚕𝚒𝚎𝚛 𝚝𝚘𝚍𝚊𝚢, 𝚊𝚗𝚍 𝙸 𝚠𝚘𝚞𝚕𝚍 𝚕𝚒𝚔𝚎 𝚝𝚘 𝚜𝚎𝚗𝚍 𝚝𝚑𝚎𝚖 𝚘𝚟𝚎𝚛 𝚊 𝚌𝚘𝚞𝚙𝚕𝚎 𝚘𝚏 𝚐𝚒𝚏𝚝 𝚟𝚘𝚞𝚌𝚑𝚎𝚛𝚜 𝚊𝚜 𝚊 𝚝𝚘𝚔𝚎𝚗 𝚘𝚏 𝚊𝚙𝚙𝚛𝚎𝚌𝚒𝚊𝚝𝚒𝚘𝚗. 𝙼𝚢 𝚊𝚜𝚜𝚒𝚜𝚝𝚊𝚗𝚝 𝚞𝚜𝚞𝚊𝚕𝚕𝚢 𝚊𝚛𝚛𝚊𝚗𝚐𝚎𝚜 𝚝𝚑𝚒𝚜, 𝚋𝚞𝚝 𝚜𝚑𝚎 𝚒𝚜 𝚘𝚞𝚝 𝚘𝚏 𝚘𝚏𝚏𝚒𝚌𝚎 𝚝𝚑𝚒𝚜 𝚠𝚎𝚎𝚔 𝚊𝚗𝚍 𝙸 𝚍𝚘 𝚗𝚘𝚝 𝚌𝚞𝚛𝚛𝚎𝚗𝚝𝚕𝚢 𝚑𝚊𝚟𝚎 𝚊𝚌𝚌𝚎𝚜𝚜 𝚝𝚘 𝚝𝚑𝚎
- 𝗜𝗺𝗮𝗴𝗶𝗻𝗲 𝗹𝗲𝗮𝘃𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗹𝗮𝗽𝘁𝗼𝗽 𝘂𝗻𝗹𝗼𝗰𝗸𝗲𝗱. All day, every day. Accessible to anyone for use.🔑🔓 To anyone with an 𝗼𝗳𝗳𝗶𝗰𝗲 𝗷𝗼𝗯, this might seem 𝘂𝗻𝘁𝗵𝗶𝗻𝗸𝗮𝗯𝗹𝗲. But in many factories, it’s everyday reality. On a production floor, efficiency and speed are king. Keeping processes up and running is crucial. Nothing should stand in their way. Not even cybersecurity. Our latest reference case shows how Darta, an international producer of frozen products, found a way to have both. Darta needed
- AIagents have moved into everyday work for some time now. Copilot, custom AI apps, agents acting on business data, ... . Most companies already have access to these great tools. 𝗕𝘂𝘁 𝘄𝗵𝗼’𝘀 𝗸𝗲𝗲𝗽𝗶𝗻𝗴 𝗮𝗻 𝗲𝘆𝗲 𝗼𝗻 𝘁𝗵𝗼𝘀𝗲 𝗮𝗴𝗲𝗻𝘁𝘀? Securing them is far from trivial. How do you keep them 𝘂𝗻𝗱𝗲𝗿 𝗰𝗼𝗻𝘁𝗿𝗼𝗹? Fede Meiners and Jahirt Ruiz joined #Microsoft at their Brussels office for an in-depth workshop: “Implement Agent 365 to secure AI apps, Copilot & agents.” Through hands-on labs, we looked at how
Something wrong or missing? Send an update. Fixed within 24 hours.