Why managed security matters more in 2026
Many companies in Mannheim, Ladenburg, Heidelberg and the Rhine-Neckar region have opened their IT environments in recent years: remote work, VPN, Microsoft 365, cloud storage, mobile devices, external providers and digital business applications are now part of daily operations. This also increases the attack surface.
Germany's BSI continues to describe the national IT security situation as tense. Ransomware, data theft, vulnerabilities, phishing and attacks on digital identities remain critical. Companies need more than a firewall and antivirus.
Where business data is especially at risk today
Business data no longer lives only on a server in the office. It is stored in Microsoft 365, Teams, SharePoint, OneDrive, cloud backups, business applications, email mailboxes, mobile devices and sometimes old file servers. This creates new risks.
- Compromised user accounts: one stolen password can expose email, files or customer data.
- Phishing and fake login pages: attacks increasingly target employees, not only technology.
- Unprotected remote access: VPN, RDP, remote tools and admin access can become entry points.
- Unclear permissions: employees may have access to data they do not need.
- Backups without restore tests: a backup is only valuable if it works in an emergency.
- Outdated systems: old servers, clients or applications increase known vulnerability risks.
NIS2 makes cybersecurity a management topic
NIS2 makes cybersecurity requirements relevant for many more companies. Not every company is automatically affected, but many management teams need to check whether sector, size, revenue, supply chains or critical services create obligations.
Even companies that are not directly covered may feel indirect pressure from customers, insurers, suppliers and partners who ask for security measures, emergency concepts, backup strategies, responsibilities and evidence.
What managed security should deliver
Managed security means ongoing security operations. Protective measures should not be introduced once and then forgotten. They need to be reviewed, adjusted and documented regularly.
1. Capture security status
Users, devices, servers, cloud services, Microsoft 365, firewalls, backups, remote access, permissions, updates and critical applications need to become visible.
2. Secure Microsoft 365 and identities
Many attacks now begin with user accounts. Multi-factor authentication, secure admin roles, sign-in logs, conditional access and clear permission concepts are central.
3. Track updates and vulnerabilities
Outdated systems remain a common risk. Managed security should review which systems are updated regularly, where legacy systems exist and where controlled replacement is needed.
4. Test backup and recovery
Backups protect against ransomware and data loss only when they are separated, protected and tested. The key question is whether recovery works in practice.
5. Introduce monitoring and alerts
Security events must be noticed before they become outages: suspicious logins, failed backups, unusual system load, full storage, disabled protections or suspicious activity.
6. Document the incident plan
During an incident, there is no time for long discussions. Companies need clear processes, contacts, access information, contracts and recovery priorities.
Cloud security and C5:2026
Cloud services are part of modern IT, but they do not move all responsibility to the provider. Germany's BSI published the updated C5:2026 criteria catalogue for secure cloud services in 2026. Companies should review cloud security in a structured way: data locations, access protection, logging, provider control, encryption and emergency processes belong together.
Common security mistakes in medium-sized businesses
- Security measures are introduced once but never reviewed.
- Administrator rights are distributed too broadly.
- Employees are not trained for phishing and social engineering.
- Backups run, but restores are never tested.
- Old servers or business applications remain without risk review.
- No documented emergency plan exists.
How to identify a good managed security partner
- They begin with a realistic inventory.
- They consider users, cloud, servers, network, backup and processes together.
- They prioritize measures by risk and operational relevance.
- They document responsibilities, access and emergency processes.
- They regularly verify whether protections are active and effective.
- They remain available for operations, monitoring, maintenance and development.
Conclusion: cybersecurity needs ongoing management
Companies in Mannheim, Ladenburg, Heidelberg and the Rhine-Neckar region can no longer treat cybersecurity as a one-time project. Attacks change, systems change, employees change, cloud services grow and regulatory requirements increase. Security needs structure, responsibility and regular review.
büKOM Systemhaus GmbH supports companies with managed security, cybersecurity for business data, Microsoft 365 security, backup reviews, monitoring, emergency planning, cloud security, NIS2 orientation and IT security consulting.
Relevant topics: managed security Mannheim, cybersecurity for business data, security Ladenburg, IT security Mannheim, cybersecurity Mannheim, NIS2 consulting Mannheim, IT IT service provider Mannheim, IT service provider Rhine-Neckar.