Cybercrime is on the rise, and it’s not slowing down anytime soon. Hackers and malicious actors are constantly trying to break into your secure online devices so they can run off with your passwords, banking information, and personal data to sell on the dark web.
One of their greatest weapons is ransomware attacks. These malware-based cyberattacks can severely disrupt business operations and compromise critical files. But these attacks can be avoided if you know what to look for. Certain key indicators of ransomware attacks can be spotted, giving you a brief window to fight back.
Recognizing ransomware activity early can help businesses reduce downtime, protect sensitive files, and respond before systems become fully compromised.
Understanding these warning signs can help businesses and individuals respond faster, reduce operational disruption, and better protect sensitive files from ransomware threats.
What is a Ransomware Attack?
A ransomware attack is a type of malware attack designed with a specific purpose. Victims of a ransomware attack will discover that they’re suddenly unable to access their files or systems.
The ransomware actually encrypts your files to deny you access. The hacker who initiated the attack then forces you to pay them for the decryption key. That’s why it’s called ransomware, because your files are literally being held for ransom.
Modern ransomware attacks often go beyond file encryption. Many attackers now attempt to steal sensitive business data before locking systems, increasing pressure on organizations to pay quickly to avoid both downtime and potential data exposure.
Ransomware attacks often target large companies, and many pay the ransom because it’s the cheapest way to recover their valuable files. Of course, as time has gone on, ransomware attacks have become more advanced and malicious, adding data-theft features that steal valuable information to sweeten the incentive for the victim to pay.
So, how can you protect yourself from ransomware and other malicious attacks?
Businesses should take a layered approach to ransomware prevention instead of relying on a single security tool. Strong password policies, regular software updates, controlled file access, and employee awareness training can all help reduce the risk of unauthorized access, particularly for growing generative AI companies handling sensitive data.
Secure cloud storage, file storage, and backup management also play an important role in ransomware recovery. Organizations that maintain redundant backups and securely store critical files in separate environments are often able to recover more quickly if systems are compromised.
It’s equally important to monitor unusual activity across networks and shared storage systems. Unexpected file changes, unfamiliar encryption activity, or sudden data transfers can sometimes indicate that ransomware is already moving through a system.
While no prevention strategy is perfect, businesses that regularly back up data, limit unnecessary access permissions, and maintain updated security systems are generally better prepared to reduce operational disruption during a ransomware incident. Making these proactive security investments is fundamental to protecting your digital assets and ensuring the longevity of a highly profitable B2B business.
Ransomware Attack Indicators
Ransomware attacks are a serious threat to online safety, affecting both businesses and individuals. That’s why it’s important to be able to identify the signs of a ransomware attack. If you catch it early enough, you might be able to back up your systems or take your computer to a technician who can help.
Here are the five signs of a ransomware attack.
1. Workstation or Network Slowdown
Slow speeds on your workstations and company network aren’t always a sign of low bandwidth or an issue with your modem. It could be one of the earliest signs of a ransomware attack.
When you notice slow speeds, determine the cause. Run a free speed test and call your internet service provider to determine whether there’s an outage in your area that could be affecting performance.
If there’s no logical reason for the slowdown, your devices may be infected with ransomware. When ransomware begins its assault on your systems, it scans through your networks to find file storage locations. This impacts network performance and slows traffic across systems.
2. Unfamiliar File Encryption
Most businesses encrypt their files and data as a security measure, and it’s a highly effective way of protecting sensitive information. If your business encrypts data, you need to know what kind of encryption you’re running and what you’ve authorized.
As we mentioned earlier, ransomware attacks encrypt your files and hold them hostage. That means if you notice any unauthorized or unfamiliar encryption in your system, it could mean ransomware is present, and your data availability is compromised.
You should pay particular attention to any files with the extensions .crypted or .cryptor. These are telltale signs of a ransomware attack and should prompt immediate action.
Regularly check all your files to know what should be encrypted and how to access them. That will help you detect ransomware and take immediate action when necessary.
3. Unauthorized File Changes
If you start to notice unauthorized changes to some of your files, you could be the victim of a ransomware attack. These changes could affect both the files themselves and entire folders that have been targeted by ransomware.
It’s common to have files with extensions such as .doc, .docx, .pdf, and .jpeg. The appearance of files without an extension (or with a strange or unrecognized extension) should be investigated immediately. Chances are, if you find that someone in your organization didn’t authorize these changes, a cyber attack is underway within your network.
To keep track of this and improve file integrity organization-wide, it’s important to create a change management program. This would be a process in which all file changes are tracked and recorded in a central database and approved by management. You should regularly audit your files and compare them against this change management plan to identify any unauthorized changes caused by ransomware attacks. Your employees must be educated to only use secure collaboration software in the workplace to avoid data leaks, unauthorized access, and other security risks.
4. Suspicious Data Extraction
Make sure that your files are where they should be. When files suddenly go missing, it’s a sign that ransomware has been present in your system for quite some time. Ransomware hackers will move through your network undetected at first, but they will eventually start to take your critical data.
Typically, they will try to grab some non-critical files first, if only to test your preparedness before making their more significant assault. You should regularly take stock of your files and watch for suspicious removals. If you can catch this theft early, you might be able to take steps to stop the attack before it compromises some of your most critical data.
5. Malware Message Screen
When a ransomware attack reaches an advanced level, devices might start to show a splash page that alerts you to the presence of malware on your computer. This could hit network-wide or pop up on certain devices.
If one of your employees sees this message, they mustn’t keep it to themselves. It needs to be reported right away so that action can be taken. This could be a graphic or a plain-text notification stating that files have been stolen, deleted, compromised, or encrypted.
This is the ransom note the hacker sent to your system. The message will typically demand a certain sum of money by a specific timeframe to regain access to the files in question. Once this occurs, it typically means that the previous signs have gone unnoticed or unreported.
At this stage, attackers have likely completed encrypting files and are demanding payment to restore access. The four steps we’ve highlighted are early warning signs that will help you stop the spread of ransomware on your system before you reach this point.
Conclusion
Ransomware is a serious threat to the systems of both businesses and individuals. You can help keep your vital files protected by keeping a vigilant eye out for any of the warning signs we’ve highlighted above.
To review, look out for:
- Slow workstations or networks
- Unfamiliar file encryptions
- Unauthorized changes to files
- Suspicious data extraction
- Malware warning message screen
Businesses that maintain organized file storage systems, secure backup access, and redundant copies of important data are often better positioned to recover from ransomware incidents. Separating critical files across secure environments can also help reduce operational downtime if systems become compromised.
Even with strong preventative measures in place, businesses should still back up important files and maintain replicated copies to reduce the risk of permanent data loss after an attack.
As ransomware attacks continue to evolve, businesses need stronger backup strategies, secure file management practices, and faster recovery systems to reduce operational risk.
Protecting your business data starts with stronger file management and backup practices. Explore how Ziddu can help simplify secure file storage and sharing.