How to Protect a Small Business From Ransomware
Updated: Sep 28
Updated September 27, 2026 · By Shannon Jones, Roo Tech Services
The short answer: Ransomware is malicious software that locks up your files and systems until you pay. Many attackers also steal your data first and threaten to leak it. The best protection is layered: keep systems patched, use endpoint detection and response (EDR), turn on multi-factor authentication, train your team to spot phishing, and keep backups that attackers can't reach and that you've actually tested.
How does a ransomware attack happen?
Most attacks follow the same basic path:
Getting in. Usually through a phishing email, a stolen password, an unpatched system, or exposed remote access.
Looking around. The attacker quietly explores your network, looks for backups and grabs administrator access.
Stealing data. Many groups copy your files before doing anything visible, so they can threaten to publish them.
Locking everything. Files and systems are encrypted, and a ransom note appears.
The quiet middle stages can last days. That's the window where good monitoring and EDR can catch an attack before the damage is done.
What ransomware myths leave businesses exposed?
Myth 1: "We're too small to be a target." Most ransomware is automated and opportunistic. Attackers go after whoever is easiest to get into, and small businesses often have weaker defenses.
Myth 2: "If we get hit, we'll just pay." Paying doesn't guarantee you'll get a working decryption key or that stolen data will be deleted. It also marks you as a business that pays. The FBI does not support paying a ransom.
Myth 3: "Our backups will save us." Backups are essential, but attackers now look for and delete backups first, and backups don't stop them from leaking stolen data. Backups need to be separate from your network, protected from deletion, and tested.
Myth 4: "Our antivirus has it covered." Traditional antivirus mainly catches known threats. Modern ransomware groups use tools and techniques designed to slip past it. EDR watches behavior and can stop an attack in progress.
What are the layers of ransomware protection?
Prevent it from getting in:
Keep Windows, software, firewalls and other devices patched
Turn on multi-factor authentication for email, remote access and admin accounts
Filter email and train your team to spot phishing
Don't leave remote desktop or other remote access open to the internet
Catch it early:
Use endpoint detection and response (EDR) on every computer and server
Have alerts watched around the clock by a security operations center (SOC)
Monitor your network and Microsoft 365 for unusual activity
Limit the damage:
Give people only the access they need, and no everyday admin rights
Separate your network so one infected device can't reach everything
Recover quickly:
Keep backups off your main network, protected from deletion
Back up Microsoft 365 and other cloud apps too
Test restores regularly and know how long recovery takes
Have a written plan for who to call and what to do first
The U.S. Cybersecurity and Infrastructure Security Agency keeps free guidance at StopRansomware.gov, including its Ransomware Guide.
What should you do if you're hit?
Disconnect affected computers from the network right away. Don't wipe them, and don't power them off unless you can't disconnect them, in which case shut them down to stop the spread.
Call your IT provider and your cyber insurance carrier.
Don't contact the attackers or pay until you've talked with your insurer and advisors.
Report it to the FBI at ic3.gov.
Restore from clean backups once the attacker's access has been removed.
Frequently asked questions
Can a small business recover from ransomware without paying?
Yes, if it has clean, tested backups that the attackers couldn't reach, and a plan to remove the attacker's access before restoring. That's why backup design and testing matter so much.
Does antivirus stop ransomware?
Not reliably on its own. Endpoint detection and response (EDR), combined with patching, MFA, email filtering and monitored alerts, gives much stronger protection.
What is double extortion ransomware?
It's when attackers both lock your files and steal a copy of your data, then threaten to publish it unless you pay. Backups help you recover, but they don't solve the data leak, which is why preventing the attack matters.
Protect your business
Our Endpoint Protection layer includes next-gen antivirus, EDR, ransomware protection and recovery, patching and endpoint backups, with 24/7 SOC monitoring on our Roo and Joey plans. Roo Tech Services protects small businesses across Knoxville and East Tennessee. Book a free consultation or call 865-332-0008.
About the author: Shannon Jones is the founder of Roo Tech Services, a veteran-owned IT company in Knoxville, Tennessee. He served in the U.S. Marine Corps from 2000 to 2004, including in Iraq in 2003, and is Fortinet NSE 3 certified.
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