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Ransomware in the Age of #SaaS | @CloudExpo SDN #AI #ML #CloudSecurity
There’s a rapidly evolving range of threats that SaaS users face on their own side that SaaS providers have no control over
By: Dmitry Dontsov
Apr. 4, 2017 02:00 PM
Protecting Data and Applications in the Age of SaaS
Recent market analysis from Cisco demonstrates the torrid adoption of cloud-based services. By 2019, more than four-fifths of all data center traffic, 83 percent, will be based in the cloud (up from 65 percent today). Most of this action will be going to public cloud services, which will account for 56 percent of all cloud workloads. In terms of type of cloud services, a majority will be applications, as the study finds Software as a Service (SaaS) is and will continue to be the dominant mode. Currently, about 45 percent of cloud implementations are SaaS; this figure is expected to grow to 59 percent by 2019, and SaaS adoption is particularly widespread among SMBs.
The increasing trust and confidence in public cloud services has contributed, and is continuing to contribute, to the growth in SaaS adoption for mission-critical workloads. More specifically, companies using or considering SaaS are often attracted to the greater level of cybersecurity protection that SaaS providers can deliver, including installations, maintenance, upgrades and patches.
However, there's a rapidly evolving range of threats that SaaS users face on their own side that SaaS providers have no control over. These include ransomware, various insider threats and third-party apps. Ensuring a high level of protection and security for SaaS-based data and apps depends as much on SaaS users addressing these client-side threats as it does on the cybersecurity resilience of SaaS providers. Here, we'll explore these primary threats and offer tips for SaaS users to address them.
Ransomware on the Rise
SaaS users may initially believe that using a SaaS provider naturally protects them from this kind of attack. Cloud file solutions like Google Drive create a second copy of local data that is stored in the cloud. But this doesn't mean your data is backed up and protected. If you're infected with ransomware, the files on a local hard drive will be held for ransom (by encryption) and any backup copies in Google Drive will be overwritten when the computer is synced. This means the "backup" data is now essentially also being held for ransom.
Proper backup is the only true protection for SaaS users - and all organizations for that matter - to guard against ransomware attacks. One effective technique is cloud-to-cloud backup, which enables data stored in one cloud to be backed up to another cloud. This type of backup can be automated, for maximum ease and resource-efficiency. In the future, we expect backup capabilities to deliver more automated ransomware protection - not just backing up data, but actually identifying ransomware attacks and the impacted files. This will help expedite data recovery and minimize any potential business disruption and downtime.
Consider an employee who moves sensitive data from a SaaS application to their personal iPad, or even their personal email address, in order to work on it at home. Their aim is good - to be more productive - but practices such as these can be hazardous. In the simplest example, this employee may lose their device and it may fall into the wrong hands. Or, the employee may switch jobs and go to a competitor, and then have full access to this SaaS data via their personal email account.
To address these threats, organizations should instill a culture of security and implement training on how employees can avoid certain practices that inadvertently create risk - from sharing passwords, to clicking on suspicious email links, to downloading and sending data to personal devices and email accounts. As the Ponemon Institute notes, "Good protection starts at the computer."
But given the speed at which most workers are moving today, it is important to supplement this training with automated protections and supports. SaaS users can also benefit from automated solutions that identify and delete risky data sharing practices and alert IT to risky or unusual user behaviors. These types of oversights can help minimize unnecessary risk exposure.
Consider the case of the recent Gooligan malware, an Android-based malware that has compromised more than one million Google accounts, hundreds of them associated with enterprise users. The infection began when users downloaded and installed a Gooligan-infected app from a third-party app store on a vulnerable Android device. Through a process called rooting, Gooligan then stole Google account and authentication token information and launched a sinister money-making scheme, downloading apps and giving them positive reviews, as well as installing adware to fraudulently generate revenues.
While the Gooligan hackers' ultimate goal proved not to be data theft, they could have inflicted major damage. According to researchers, a total of 86 apps available in third-party marketplaces carried the malware, and collectively they had the power to root 74 percent of all Android phones worldwide. Gooligan was just the latest (and perhaps most eye-opening) example of the potential danger that third-party apps can pose to the security of connected SaaS-based data and applications. Industry research shows that the use of third-party apps within enterprises has increased 30 times over the past two years, and more than a quarter of these apps are risky. Given the acceleration of third-party app downloads - which isn't expected to slow anytime soon - SaaS users should frequently scan third-party applications accessing SaaS systems, as well as "blacklist" and remove any identified as suspicious.
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