The Holiday Ransomware Readiness Playbook for Lean IT Teams

Ransomware attacks increase during the holidays because attackers target periods when fewer people are monitoring systems. Around 52% of surveyed organizations were targeted by ransomware on holidays or weekends, and 78% of companies cut security operations center (SOC) staffing by 50% or more during those periods1. Lean IT teams are most exposed, because fewer people cover more systems while projects close and staff travel. 

IT teams should prepare for ransomware by completing five steps before the holiday change freeze:

1. Rank critical workloads by recovery priority.

2. Confirm at least one immutable, offsite backup copy.

3. Set a recovery point objective (RPO) and recovery time objective (RTO) for each priority system.

4. Run a full restore test and record results against RPO and RTO.

5. Assign a recovery owner and a named backup person for each recovery role.

Recovery speed during the holidays depends on decisions made before the holidays.

The 3-2-1-1-0 backup rule is a data protection standard that requires three copies of data, on two different media, with one copy offsite, one copy immutable or offline, and zero errors after recovery verification. The rule matters for ransomware because attackers target backup data. An immutable or offline copy cannot be altered or deleted, so it preserves a clean recovery option.

In the first 24 hours of a ransomware attack, IT teams should follow a fixed response order:

1. Isolate affected systems.

2. Preserve evidence for investigators and the cyber insurer.

3. Notify leadership, the cyber insurer, and backup vendor incident support.

4. Identify the last known clean recovery point and scan backups for malware.

5. Restore systems in priority order, starting with identity systems (Microsoft Active Directory and Entra ID) and email.

A fixed order lets the team act on a plan instead of instinct.

A successful backup confirms that data was copied; a tested restore confirms that data can be recovered within the required RPO and RTO. The gap is significant: in the Arcserve 2026 State of Data Resilience market study, 65.1% of IT professionals and leaders were confident in ransomware recovery within 48 hours, but only 35.4% met their RPO and RTO targets in their most recent full-recovery test. 

Under the shared responsibility model, the customer is responsible for protecting Microsoft 365, Microsoft Entra ID, and Google Workspace data. IT teams should keep independent backups of SaaS data stored outside the SaaS vendor environment. In the Arcserve 2026 State of Data Resilience market study, 19.0% of organizations had no SaaS backup coverage.

The five layers of ransomware readiness are clean recovery points, an unalterable copy, a tested restore, someone who owns recovery, and covered SaaS data. Any IT team can compare their current architecture against the five layers to understand the gap between feeling ready for ransomware recovery and being ready.

Arcserve Ransomware Protection and Recovery Suites are subscription offerings that protect backup data, validate recoverability, and automate recovery for lean IT teams.

The Suites come in two tiers:

• Suite Core: Arcserve UDP Premium and Arcserve Cloud Cyber Resilient Storage, for teams with recovery experience.

• Suite Pro: Suite Core plus Arcserve Disaster Recovery Runbooks, the Rapid Ransomware Response Service, and recovery-readiness onboarding, for teams that have never completed a full recovery test or depend on a single backup administrator.