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How to prepare for the rise in DDoS attacks
3 mins read
In this current global crisis, enterprises across the globe are riding on technology to maintain business continuity, encouraging employees to access emails and company data from their home. In this blog, Rajarshi Purkayastha shares tips for enterprises to keep their devices and data safe from DDoS attacks.
The COVID-19 pandemic has kept enterprises and their IT teams busy finding quick and effective ways to run their business while protecting their customers, partners and employees. Where some industries have been heavily impacted, others are striving and making every effort to maintain business continuity and not let this pandemic effect their services. Network, video conferencing, OTT services, online medical consultation, hospital connectivity and communication - these critical services have never been more important than they are today - enabling businesses and essential services to function at a crucial time as people around the world try to find a semblance of normalcy through technology. Protect what matters Most governments have mandated organisations to have their employees work from home. There is a large section of employees across the world who now need virtual access to their corporate network and corporate assets to be able to do their jobs. But the reality is, many enterprises don’t have basic perimeter security in place such as protection against Distributed Denial of Service (DDoS) attacks.Hackers have spotted their chance"DDoS attacks are a threat to all web-facing setups. And currently, that includes pretty much every way of working."


- A trend of longer and more frequent DDoS attacks is being noted. Most attackers are not successful because of new techniques, they are successful because they are persistent
- Even with low volume attacks, VPN and firewall resources can be exhausted easily
- SSL (Secure Sockets Layer) VPNs are vulnerable to SSL flood DDOS attacks
- UDP (User Datagram Protocol) flood attacks can easily overwhelm VPNs
So, what’s the best defence? Here are few tips for you to stay safe:"The fact that many of the systems being targeted are critical and their outages can lead to losses, some of which can be irreversible, it is important that we stand our best guard."
Understand the warning signs: Most DDoS attacks start as sudden spikes in traffic, and it's recommended to check your network configurations regularly and watch out for legitimate and illegitimate traffic on your network
- Make your user-based access controls robust by provisioning for more bandwidth than needed. Keep regular checks on servers hosting most important data. A second or third server will help offload the extra data in case of an attack on the main server
- Ensure your firewalls and routers are in modes that will prevent denial of service attacks. Enable and block SIP-based signatures firewall. If you are not using SIP services, then consider blocking the necessary ports at your perimeter
- Make use of DDoS detection programmes that will help detect a possible attack and activate a lock down for your systems before they are attacked
- Organisations should look to partner with service providers who are not only able to offer multi-layer cloud-based protection but who also enable real-time detection and mitigation, protecting critical assets using cloud signalling to raise an alarm during a volumetric attack. These service providers can help fix the gaps in your security strategy and ensure you stay current with new solutions and technology
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