Business Continuity vs Disaster Recovery: What's the Difference?

Picture 2 bad Mondays. On the first, ransomware encrypts your servers. On the second, a burst pipe floods your office, but every system is fine in the cloud. Both are disasters. Only one is mainly an IT problem.

That’s the core difference between business continuity and disaster recovery. People use the terms interchangeably, and vendors often bundle them as “BC/DR.” But they answer different questions, belong to different owners and fail in different ways when they’re confused.

This guide explains the scope of each plan, who should own it, what goes in it and how they fit together, so you don’t end up with a perfect server restore procedure and no idea where your staff should work tomorrow.

The short definitions

NIST’s contingency planning guide for federal systems, SP 800-34 Revision 1 (2010), gives clear working definitions that apply well beyond government:

• Business continuity plan (BCP): focuses on sustaining an organization’s business processes, such as payroll or customer service, during and after a disruption. It may cover one business unit or the whole organization.
• Disaster recovery plan (DRP): an information system-focused plan designed to restore a system, application or computer facility at an alternate site after an emergency. NIST notes a DRP may support a BCP by recovering the systems that business processes depend on.

NIST also points out that continuity and contingency planning “are often confused.” Continuity planning applies to the business itself; contingency planning applies to information systems.

Key takeaway: Business continuity asks, “How do we keep serving customers?” Disaster recovery asks, “How do we get our technology back?” The first sets the targets. The second hits them.

Business continuity vs disaster recovery side by side

What a business continuity plan covers

A BCP is broader than technology because most disruptions aren’t purely technical. Ready.gov, FEMA’s preparedness site, frames business continuity planning as a 6-step process: prepare, define objectives, identify and prioritize risks and impacts, develop strategies, define teams and tasks, and test the plan.

A practical BCP for a small or midsize business usually includes:

• Critical business functions ranked by how long you can survive without them (taking orders, payroll, shipping, patient scheduling).
• Manual workarounds, such as paper order forms or phone-based scheduling, if systems are down.
• Alternate work arrangements, such as remote work or a backup site.
• Key people and backups, so no process depends on 1 person.
• Supplier and vendor contingencies, including second sources for critical inputs.
• Crisis communications, covering who speaks to staff, customers, media and regulators. NIST describes a crisis communications plan as a separate, related plan that designates who is authorized to speak publicly.
• Insurance and financial steps, including how to file claims and access emergency cash.

ISO 22301:2019 is the international standard for a business continuity management system. It sets requirements for planning, operating, monitoring and improving a continuity program, and it applies to organizations of any size. ISO lists a 2024 amendment adding climate action changes and a new edition in development, so check the current version if you plan to certify.

What a disaster recovery plan covers

A DRP is narrower and more technical. Ready.gov’s IT disaster recovery guidance lists the building blocks:

• An inventory of hardware, software, applications and data.
• A backup strategy for all critical information, with regular testing that restores actually work.
• A list of critical applications and the hardware or cloud resources they need.
• Restore priorities, in order.
• Recovery strategies for losing a server room, hardware, internet connectivity, applications or data.

Ready.gov also says each system’s recovery time should match the recovery time objective of the business function that depends on it. Those targets come from the business side, which is why DR can’t be planned in isolation. Our explainer on RTO vs RPO covers how to set those numbers.

For many small businesses, DR now means cloud backups, SaaS data protection and sometimes disaster recovery as a service (DRaaS), which replicates systems to a provider’s cloud for fast failover. Systems that can’t tolerate any downtime may need high availability designs, which is a different and more expensive goal than recovery.

How the 2 plans fit together

The bridge between them is the business impact analysis (BIA). Ready.gov’s DR guidance says the BIA sets IT and business recovery priorities, recovery time objectives and the recovery point objective for data.

Here’s how the pieces flow:

1. BIA (business-led): “If we can’t take orders for more than 4 hours, we lose major customers.”
2. BCP (business-led): “If systems are down, we take orders by phone on paper forms and process them later.”
3. DRP (IT-led): “The order system must be restored within 4 hours, with no more than 1 hour of lost data. We use hourly cloud backups and a documented restore process.”
4. Incident response plan (security-led): “If the outage is a cyberattack, here’s how we contain it, preserve evidence and decide when it’s safe to restore.” See our incident response plan guide.

Ransomware is the scenario where all 3 plans must work at once. The DRP restores systems, the incident response plan makes sure you’re not restoring into a compromised network, and the BCP keeps the business operating in the meantime. Our ransomware protection guide covers the backup design that makes this possible.

Who should own each plan

A common failure is handing both plans to IT. IT can’t decide whether the business should prioritize shipping over invoicing, or whether customer service can work from home.

Where to start

You don’t need a 100-page binder. Follow these steps:

1. Run a simple BIA. List your 10 most important business functions. For each, write how long you can go without it and what systems it depends on.
2. Set RTO and RPO for critical systems based on that list.
3. Check your backups. Confirm you have off-site or immutable copies and that a test restore actually works. Our business data backup guide shows how.
4. Write a 2-page BCP covering contacts, critical functions, workarounds, alternate work locations and who speaks for the company.
5. Write the DRP with restore order, step-by-step procedures, credentials storage and vendor contacts.
6. Test both together with a tabletop exercise at least once a year, plus a real restore test.
7. Review after changes, such as new systems, offices, key hires or departures.

The bottom line

Business continuity and disaster recovery aren’t competing plans. Business continuity is the umbrella that keeps the company serving customers through any disruption. Disaster recovery is the technical engine underneath it that brings systems and data back. Build them from the same business impact analysis, give each a clear owner and test them together.

Sources

• NIST SP 800-34 Rev. 1, Contingency Planning Guide for Federal Information Systems — definitions of BCP, DRP and related plans
• ISO 22301:2019, Business continuity management systems — international business continuity standard
• Ready.gov: Business Continuity Planning — 6-step continuity planning process
• Ready.gov: IT Disaster Recovery Plan — DR plan contents and link to the business impact analysis