Cybercriminals develop malware (malicious software) to spread and infect their target systems and achieve their objectives. They can cause destruction and numerous other effects on our systems when achieving their criminal goals.
Conversely, virus scanning helps search through your system and identify and remove any malicious threats like viruses, worms, spyware, trojans, ransomware, and adware. You will find many antivirus software in the market.
Also, there are many virus scanning methods that can be used based on the requirement.
Real-time scanning and periodic scanning are two common ways of scanning your system. Real-Time vs. Periodic Scanning: which one is the more effective? Let’s discuss this in this article.
Understanding real-time scanning
What is real-time scanning, and how does it work?
Real-time scanning uses live virus detection technology. It scans all files when they are accessed, detects infected files, and blocks access to those files. Every file is checked by the real-time scanning method before they are accessed by your computer. Instant threat identification is a main feature of this method.
This type of scanning protects your system and files effectively. Real-time scanning can be used to scan the data from uploaded files to your websites, email attachments, web pages, software applications, etc.
Most antivirus software like Filestack comes with a real-time scanning feature.
We should know that cybercriminals are constantly creating new threats or evolving the existing malware to avoid detection. So, it’s vital to keep your antivirus software up-to-date by making frequent software updates. However, you don’t have to worry about online real-time malware scans like Filestack because those tools are always kept up to date.
Advantages of real-time scanning
Real-time virus scanning provides proactive protection in real time, unlike reactive protection or periodic scanning. It provides the first line of defense against possible security threats to your system and data. It enhances the overall protection of your system, files, and programs by constantly watching, scanning, and protecting against malicious threats that could damage your entire system and the integrity, confidentiality, and availability of your data.
Exploring periodic scanning
Mechanism and scheduling
Unlike real-time live scanning technology, periodic scanning, which is also known as scheduled scanning, does not do virus scanning real time. This method performs scans at set intervals rather than continuous malware monitoring. These scans are usually scheduled during off-peak times to minimize the disruption to system performance.
Depending on the organization’s requirement, the mechanism behind the periodic virus scanning involves predefined schedules – ranging from daily, weekly, or even monthly scans. Periodic scanning focuses on analyzing stored files and system states during specific windows of time, unlike real-time scanning, which monitors activity instantly. Usually, IT administrators set up these schedules based on the threat levels and system usage to ensure regular and thorough checks.
Benefits of periodic scanning
Since the periodic scans are performed at a designated time, which is usually off-peak time, the system strain can be reduced. So, these scans are ideal for systems where continuous scans may drain resources.
Periodic scans are important to detect malware that may not have been active or detectable during real-time scanning. Periodic scans can detect such hidden threats by scanning the entire system during off-peak hours.
Comparative Effectiveness
When comparing the effectiveness of both of these real-time and periodic scanning methods, we see that both methods are effective in different situations. It’s essential to consider the situation, system usage, and security needs where each method outperforms and use them in the proper context.
Situational best practices
Real-Time Scanning
Real-time scanning is important in environments where there is constant data transfer and high user interaction. File-sharing platforms, e-commerce sites, and cloud services are a few examples of such environments. These environments are frequently exposed to external threats, and continuous monitoring, immediate detection, and response are necessary. Real-time scanning can ensure instant threat identification and avoid potential security breaches as they occur.
This is the best approach for businesses such as financial institutions or healthcare providers that handle sensitive data.
Periodic Scanning
Periodic scanning is the best solution for environments where system performance is a priority and sensitive data is transferred or modified very rarely. This approach is good for systems with minimal external exposure, such as internal servers and databases. For small-to-medium enterprises (SMEs) who have limited IT resources, it’s ideal to have periodic scanning to avoid the system overhead of continuous monitoring.
In practice, many organizations adopt a hybrid approach, where real-time scanning handles incoming threats, while periodic scanning acts as a secondary layer of defense to catch anything missed. Combining both methods ensures robust security while optimizing system performance.
Conclusion
When we discuss real-time vs. periodic scanning, the suitable approach depends on the unique needs of your system and organization.
Real-time scanning provides immediate protection ensuring that every file accessed, uploaded, or downloaded is checked for threats. This approach is ideal for environments with constant data flow and exposure to external environments such as e-commerce or financial institutions.
On the other hand, the periodic scanning approach provides thorough system checks during off-peak hours. This detects hidden threats without putting a strain on the system’s performance. This approach is ideal for internal servers and databases with less exposure to external systems.
Many organizations prefer a hybrid method which is a combination of both real-time and periodic scanning approaches.
FAQs
- What is periodic scanning?
Periodic (a.k.a. scheduled scanning) is an approach to check and delete malware threats, at pre-scheduled time slots to minimize the disruption to system performance.
- What is real-time scanning?
Real-time scanning is an approach that automatically monitors and scans files as they are accessed, downloaded, or opened. It provides immediate threat detection and blocks malicious files before they can harm your system.
- Real-Time vs. Periodic Scanning: which approach is the best?
Both approaches are the best for their respective context. So we should use these approaches based on the requirements of the environment to get the best results through these malware protection methods.
