How Fast Could Your Business Recover From Ransomware?

Imagine your business was hit with ransomware this morning. How long would it take to get your critical systems running again?

The answer may be longer than many Canadian organizations expect. CIRA’s 2025 Cybersecurity Survey found that 24 percent of organizations surveyed had experienced a ransomware attack in the previous 12 months. Among those organizations, 74 percent paid the ransom.

Preventing ransomware remains an important part of cybersecurity, but prevention is only part of the picture. Businesses also need to know how they would respond if an attack succeeded, which systems they would restore first, and how long they could operate without them. Recovery is where those plans get tested.

Recovery Takes More Than Restoring a Backup

Having backups is an important part of ransomware preparedness. Getting from an encrypted network back to normal operations involves considerably more work.

Affected systems may need to be isolated while the incident is investigated. The team responding to the attack needs to understand how the attacker gained access, what systems and accounts were affected, and if data was stolen. Compromised credentials may need to be reset and infected devices rebuilt.

Backups need to be checked before they’re restored. The Canadian Centre for Cyber Security recommends scanning backups for malware, restoring systems in an isolated environment, addressing the original point of entry, and prioritizing critical systems and data during recovery.

Moving too quickly creates another problem if compromised systems are brought back online before the attacker’s access has been removed.

Recovery isn’t simply about getting systems running again. The business needs to know those systems are safe to use.

How Long Does Recovery Take?

There is no standard recovery timeline for a ransomware attack. The size and complexity of the environment, extent of the compromise, condition of the backups, and the organization’s preparation affect how quickly operations resume.

Canadian data gives us some indication of how long cyber recovery can take.

Among organizations responding to CIRA’s 2025 survey that had recovered from cyber incidents, 42 percent restored their IT systems to pre-incident capacity within a week. Most recovered within a month. A similar 42 percent recovered compromised or stolen data in less than a week. These figures cover cyber incidents broadly and show how easily recovery can extend across days or weeks.

Even a few days can create serious disruption when employees depend on unavailable systems to serve customers, process orders, access records, communicate, or complete their work.

Knowing how quickly you can recover requires understanding what your business relies on and what would be involved in restoring it.

What Determines How Quickly You Recover?

The scope of an attack has a significant effect on recovery. An isolated infected device presents a very different challenge from an incident involving servers, administrator accounts, cloud environments, identity systems, or multiple locations.

The condition of your backups is another factor. A backup only helps if it contains the information you need, remains accessible after the attack, and can be restored successfully. Ransomware operators may deliberately target connected backups, which is why backup protection and isolation are important aspects of recovery planning.

Priorities need to be established before an incident. Payroll, customer-facing systems, production environments, email, financial applications, and other services won’t necessarily have the same urgency for every organization. The recovery team will be able to focus its efforts where disruption is having the greatest effect if they know which systems need to return first.

Preparation removes delays at a point when every hour counts. Contact information, responsibilities, escalation procedures, vendor information, cyber insurance requirements, and recovery priorities are much easier to sort out before the network is unavailable.

Testing brings these pieces together. A recovery plan can look complete on paper while still relying on outdated contacts, inaccessible documentation, missing credentials, or backups that have never been restored.

Paying the Ransom Doesn’t End the Incident

Paying a ransom doesn’t put the business back where it was before the attack.

Affected systems may still need to be rebuilt or restored. Compromised credentials have to be reset, the original point of entry needs to be closed, and the environment has to be checked before normal access resumes. If data was stolen, restoring local files does nothing to pull those copies back from the attacker.

The business may also be dealing with insurance requirements, legal or privacy obligations, customer communication, and decisions about how and when systems can safely return to service. Recovery work continues regardless of what happens with the ransom demand.

The Cost Keeps Growing While the Business Is Down

The financial impact of ransomware grows as recovery stretches on. Statistics Canada reported that Canadian businesses spent approximately $1.2 billion recovering from cybersecurity incidents in 2023, double the amount reported in 2021.

Recovery costs can include outside technical expertise, forensic investigation, system rebuilding, overtime, legal or privacy support, customer communications, and other expenses associated with managing the incident.

Operational losses can accumulate alongside them. Employees may be unable to work normally. Sales or transactions can be interrupted. Customer service can slow down. Projects can be delayed, and leadership may spend days focused on the incident instead of running the business.

Downtime hits businesses differently depending on which systems are affected and how long they stay unavailable. Identifying the most critical systems determines recovery priorities before an incident occurs.

Your Recovery Time Shouldn’t Be a Guess

A recovery time objective, or RTO, establishes how quickly a system or business function needs to be restored following a disruption. Different systems can have different targets depending on how heavily the organization relies on them.

For example, losing access to an internal archive may be inconvenient for several days. Losing the system responsible for taking customer orders could begin affecting revenue immediately. Setting priorities gives teams an order for recovery and determines what resources will be needed.

Backups are part of that planning, but saying “we have backups” doesn’t tell you how quickly the business can recover. Organizations need to know when those backups were last tested, whether they’re protected from the production environment, how long restoration takes, and whether the systems they depend on can be rebuilt in the required order.

Recovery plans should also account for periods when normal systems or internet connectivity may be unavailable. Teams need access to the information and resources required to keep essential operations moving while restoration is underway.

Testing those plans confirms whether the recovery targets set on paper can be met when the business is under pressure.

Recovery Starts Before the Attack

Recovery planning gives the business a head start before any systems go down.

Critical systems can be ranked by priority, backups can be protected and tested, and responsibilities can be assigned in advance. Contact information and recovery documentation should also be available somewhere the response team can reach if normal systems are unavailable.

Testing confirms that those plans still reflect the current environment and gives teams a chance to catch outdated information, access issues, or recovery steps that need to be adjusted. Preparation won’t prevent every ransomware incident, but it can reduce uncertainty and give the response team a path back to normal operations.

If ransomware hit tomorrow, how long would it take to restore the systems your business depends on? Nucleus Networks can assess your recovery readiness, strengthen your backup and business continuity planning, and resolve vulnerabilities before you have to test your plans for real.

Frequently Asked Questions: Ransomware Recovery

How long does it take to recover from a ransomware attack?

Recovery can take anywhere from hours to weeks or longer depending on the scope of the attack, the systems affected, the condition of the organization’s backups, and how prepared the business is to respond. Recovery also includes investigating and securing the environment before affected systems can safely return to service.

Can you recover from ransomware using backups?

Clean, protected backups can play a major role in ransomware recovery. Backups should be isolated from systems that ransomware could reach and tested regularly to confirm they can be restored. Before restoration, backups should also be checked to ensure they have not been compromised.

Should a business pay a ransomware demand?

The decision can involve legal, financial, operational, and security considerations specific to the incident. The Canadian Centre for Cyber Security advises organizations to contact law enforcement before considering payment and warns that paying does not guarantee access to encrypted data or prevent attackers from making further demands.

How often should ransomware recovery plans be tested?

Recovery plans should be tested regularly and whenever significant changes are made to systems, infrastructure, vendors, or business operations. Exercises can reveal outdated information, unclear responsibilities, backup problems, and other gaps before an incident occurs.