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12 Aug 2016

How To Defend Against A DDoS

In the web security arena, everything changes very fast. The threat landscape rapidly evolves. Zero-day attacks are launched on a daily basis, exploiting newly discovered vulnerabilities for which signature are not available yet. Attackers hide their attack vectors, and scraping bots hide their identities behind CDNs and dynamic IPs, avoiding any simple blacklisting technique trying to block them. In such a rapidly evolving battleground, static cloud security services cannot protect you. Static cloud security services utilize negative security models that identify attacks based on the signatures of attack vectors, and block attackers and bots using IP blacklisting mechanisms. Unfortunately, that can’t help you with zero-day or dynamic IP attacks.

Meanwhile, the assets you need to protect are notoriously changing all the time, continuously introducing new vulnerabilities that may be exploited by attackers. With static cloud security services, you have to tell whenever you launch new applications or introduce changes into existing ones, and manually change your security policies accordingly. This manual process quickly gets out of control as developers that use continuous delivery methods launch release new versions on a daily basis. As a result, your protected assets are introduced with new vulnerabilities that static cloud security services cannot detect and mitigate.

So how do you win a game in which the rules keep changing all the time?

It’s simple. All you need to do is to implement a cloud security service that continuously and automatically adapts to the evolving threat landscape and protected assets. You can’t do that with static cloud security services. To make sure you are continuously protected, you’ll need a cloud security service that implements a positive security model, which means it can tell what your legitimate traffic looks like, and then block anything else. This would get you full protection from zero-day attacks, and from attacks using dynamic IP techniques. In addition, a continuously adaptive cloud security would automatically identify new applications that you launch, analyze their potential vulnerabilities, and tailor them an appropriate security policy.

Radware Cloud Security Services are the first continuously adaptive cloud security service. With positive security models and behavioral analysis technology, they provide automatic protection against zero-day attacks. With IP agnostic fingerprinting technology, attackers and bots are blocked even when they try to hide behind CDNs and dynamic IPs. New applications are automatically discovered, and security policies are automatically created for them. This way, Radware Cloud Security services keep you protected… even while the rules of the games keep changing!

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01 Aug 2016

Ransomware Threat Mitigation

In today’s ruthless and competitive environment, cybersecurity needs to be foolproof, as it only takes a single breach to in ict serious damage to your data and business. But in case of a security breach, we must be able to recover our systems without paying ransom, which ultimately trans- lates into funding cybercriminals, thus making them bolder and highly sophisticated. Below are a number of useful measures that can help mitigate the risk of the ransomware threat:

• Keep up-to- date: Ransomware is a constantly evolving threat. It is important to keep up-to- date with new developments with awareness trainings.

• Impose and enforce strict employee practices:

• Avoid visiting malicious or compromised websites.

• Keep track of browser extensions and plug-ins.

• Don’t click spontaneously on links embedded in 
emails.

• Delete spam permanently from your mailbox.

• Beware of phishing sites and traps. If you are not, 
you may instantly expose your client to security 
threats.

• Don’t install any unauthorized software.

• Update software vulnerabilities and patches

• Ensure that software and operating systems in your organization are up-to- date with security patches.

• Secure mobile devices: Equip all mobile devices with security solutions and a remote-wipe program. Back up their data routinely. If ransomware locks a mobile device, the remote-wipe program should reset it to an agreed recovery point.

• Employ multilayered defense: Use multilayered secu- rity solutions like end-point, messaging and network protection.

• Onsite and offsite backup: Store, maintain and back up data and configurations regularly.

• Control system encryption: Two senior managers working in tandem should encrypt the whole system. They should also copy the decryption key to a designated, safe, unobtrusive location.

Ransomware is a thriving menace. With growing revenue, ransomware groups can continue to advance their techniques. Security practitioners need to recover their systems without paying ransom. There is no bulletproof solution, but we can certainly cut the veins of ransomware groups and bleed them to death.

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