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22.07.2026
Backup monitoring continuously checks whether backups are complete, technically sound and, in an emergency, actually restorable, regardless of the „successful“ status of a backup job.
This very difference determines for companies, IT managers and managed service providers whether a data recovery in an emergency is successful or fails. This article summarises a conversation with Stefan Schröder, Managing Director of BACKUP EAGLE®, from the accompio Focus on a discussion and categorise Snapshots, Silent Failures, RPO, RTO, Immutable Backup, and Air Gap Backup as protective measures.
In this focal topic, accompio spoke with Stefan Schröder, Managing Director of BACKUP EAGLE®, about the necessity and relevance of a well-thought-out backup structure and its monitoring.
The summary follows the official chapters of the YouTube video and editorially condenses the content evidenced in the interview and the article. It is not a verbatim transcript.
00:00 Greeting and introduction: Stefan Schröder, Managing Director of BACKUP EAGLE®, talks about reliable data backup and the importance of end-to-end backup monitoring.
00:51 When is a backup truly secure? The successful backup job alone is not the deciding factor. A backup is only considered reliable once recovery has been proven to work.
01:12 The green backup icon: A technical success report confirms that the process has finished without a reported error. However, it does not prove that all required data have been completely backed up.
02:43 Technical vulnerabilities: Missing settings, ignored folders or newly configured systems can cause gaps in data backup to go unnoticed.
03:11 Snapshot and backup: A snapshot often enables rapid recovery, but is frequently located on the same system as the original data. It complements an independently stored backup, but does not replace it.
04:11 Silent Failures: Unnoticed errors occur, for example, when error messages are suppressed or new systems are never included in the backup. Backup monitoring is designed to make such gaps visible at an early stage.
05:54 Restore Tests: BACKUP EAGLE® recommends restoration tests at least every six months, ideally monthly. Regular and documented spot checks provide robust evidence.
06:14 Monitoring, logging and reporting: Monitoring shows the current state, logging records security-relevant events, and reporting documents the development for audits and compliance evidence.
07:31 RPO and RTO: The Recovery Point Objective describes the maximum acceptable data loss. The Recovery Time Objective specifies how quickly a system must be available again after a failure.
09:37 Ransomware attacks: Professional attackers specifically target backup systems and storage locations. Immutable storage and air-gapping make the subsequent encryption or deletion of backups more difficult.
10:26 Detecting attacks early: Backup monitoring can reveal notable changes in data volume, runtime, metadata or retention periods. It complements the security architecture, but does not replace it.
11:26 Securing your own systems: Stefan Schröder explains how BACKUP EAGLE® protects their own systems and examines backup security from both an organisational and technical perspective.
12:52 Integration into existing systems: Central backup monitoring consolidates information from existing backup environments and makes gaps and discrepancies traceable.
13:30 Best Practices: Organisations require regular restore tests, fixed test schedules, traceable reports and independently protected backup copies.
15:20 Practical example: In the interview, Stefan Schröder outlines a case where monitoring made a critical deviation visible in good time, thereby helping to prevent major damage.
17:35 Why backup monitoring is underestimated: A green status quickly creates a false sense of security. Only ongoing monitoring and a successfully tested recovery show whether a backup will hold up in an emergency.
A backup job is technically considered successful as soon as the process ends without error messages. This status says nothing about completeness of content. If a setting, a folder, or a newly set up system is missing, the tool will still continue to back up data, but will continue to report „successful“. It is precisely at this point that silent failures arise, i.e. security vulnerabilities in the backup that nobody notices until a restore is required.
„the backup is part of the security architecture, one could also call it „Last line of defence“call. If nothing else works, then hopefully the backup is still there.„
— Stefan Schröder, Managing Director, BACKUP EAGLE®
Common causes of silent failures include suppressed error messages, newly added systems that were never included in the backup, and a lack of alerting because this task falls outside the actual backup solution. Backup monitoring uncovers precisely these gaps before a real recovery is needed.
Modern ransomware attacks rarely stem from lone actors, but from organised, specialised groups that specifically target backup systems.
„It's not just someone sitting in a garage trying to hack into something; these are entire groups, professional IT teams with their own specialised administrators.„
— Stefan Schröder, Managing Director, BACKUP EAGLE®
These teams deliberately destroy backup tools or the storage locations where backups are kept. Immutable backup and air-gap backup specifically address this risk. Immutable storage permanently protects stored data from subsequent overwriting and deletion, regardless of administrator privileges. Air gapping stores copies of the data in a separate location with a genuine disconnection from the production environment. According to BACKUP EAGLE®, both measures are among the most important technical building blocks for secure backup monitoring against ransomware.
accompio sets up backup monitoring for businesses and public sector clients, uncovers silent failures and comprehensibly documents restore tests.
RPO (Recovery Point Objective) specifies how far back a company will go in an emergency and how much data can be lost at maximum.
RTO (Recovery Time Objective) determines how quickly a system is back up and running after a failure. Both values are defined individually per system by companies, as not every application has the same priority.
Backup monitoring software such as BACKUP EAGLE® specifically measures how long a restore test actually takes and documents how far back a recovery point reaches. Without this measurement, all that remains is the technical success message of a tool, not the actual risk to the company.
BACKUP EAGLE® recommends restore tests at least twice a year, ideally monthly. A complete test of the entire environment is not necessary for this; selective spot checks are usually sufficient. Crucially, regularity is key, documented via fixed test plans that can, at any time, provide a company with proof that a recovery actually works.
A backup is only considered secure when a restore has been demonstrably proven to work, not just when a tool reports „successful“. Backup Monitoring highlights exactly this difference through ongoing checks, regular restore tests, and protection via immutable storage and air gapping. Companies reviewing their current backup setup will find details on performance. Backup, Reporting, Monitoring & Audit with accompaniment.
Stefan Schröder is Managing Director of BACKUP EAGLE® and is an expert in on-premise and cloud backup structures as well as their security.
Backup monitoring shows the current technical status of backups, mostly via a dashboard. Backup reporting documents this status over a longer period, primarily for compliance evidence to auditors or clients.
No, a snapshot complements a backup, but does not replace it. A snapshot often resides on the same system as the original data and would be lost with it in the event of a system failure or attack.
Suitable backup monitoring software detects fluctuations in data volume and backup runtime, identifies empty or incomplete backups, and reports unusual changes to metadata or retention periods. These anomalies often point to ransomware, misconfigurations, or overlooked systems. Furthermore, a good solution clearly distinguishes between monitoring (current status at a glance), logging (security-relevant logging), and reporting (evidence for compliance purposes), as these three areas fulfil different tasks.
Silent failures are undiscovered gaps in a backup, such as unsaved files or new systems that were never included in the backup. The backup job still reports „successful“ because the tool itself doesn't recognise the gap.
A backup alone is not enough. Firewalls, virus scanners, and EDR systems intervene before an attack. The backup forms the last line of defence should these mechanisms fail.
BACKUP EAGLE® recommends restore tests at least every six months, ideally monthly, documented via a fixed test plan.
