Welcome!

@CloudExpo Authors: Mauro Carniel, John Worthington, William Schmarzo, Elizabeth White, Pat Romanski

Related Topics: Cloud Security, Mobile IoT, Microservices Expo, Agile Computing, @CloudExpo

Cloud Security: Article

Online Holiday Sales Have Begun: Have You Secured Your Enterprise Network?

Do employees really need access to the corporate network via their smartphones?

It's that time of the year again. The flood of email alerts showcasing online holiday shopping deals fill the inbox at your office PC, laptops and wireless devices as merchants attempt to lure online shoppers to "click and save" while supplies last. In fact, reports show that this year's "holiday shopping" deals have already started as retailers attempt to stretch the holiday shopping season - to begin even earlier than Black Friday.

According to a recent report in Time, Booz & Co. chief retail strategist, Thom Blischok states. "We're not going to see a huge increase in sales growth for Black Friday this year....What we do expect is a lot of ‘showcasing' on Black Friday. Shoppers will check things out in stores, electronics especially, but then purchase online on the Monday after. Cyber Monday sales will explode this year."

While this is good news for merchants, it can become a virtual nightmare for corporate network administrators. With millions of online shoppers turning their office PCs, laptops, and wireless devices into online shopping carts, they hog valuable network bandwidth meant for corporate applications such as e-mail, SAP, Salesforce, and other business-critical applications.

The onslaught of personal smartphones and tablets connecting to corporate networks fully capable of performing browser-based shopping are further affecting normal business operations. According to ABI Research, more than 36 percent of consumers own at least three wireless devices. eCommerce merchants now alert wired consumers with daily deals almost instantly via mobile marketing. This surge has placed greater demands on network monitoring solutions as the mobile device market continues to grow at an astounding rate of five billion subscribers worldwide.

Most organizations allowing employee-owned devices onto their corporate networks (73% according to Aberdeen) find it not only drains their bandwidth, but also opens up severe internal security threats to proprietary information stored on the network. Employers assume this as increased productivity for employees armed with mobile devices and cost savings for hardware not purchased by the corporate office as most employees (54 percent, according to Yankee Group) demand to use their own devices at work.

According to IDC Research, however, 30-40 percent of Internet use in the workplace is non-business related. Vault.com found 37 percent of workers admit to surfing the Web constantly at work for personal interests. This underscores the need for mobile device traffic monitoring. How can network admins monitor employee internet usage and take corrective action?

Companies can easily set guidelines for network traffic monitoring to safeguard against employees armed with BYOD - especially during high traffic holiday shopping/sale months - in a few easy steps.

MAC Addresses and Mobile Devices
The old and sort of cumbersome way is to monitor the unique MAC addresses that are used by each smart mobile device that accesses an Ethernet network. The 6 byte (i.e., 48 bit) MAC address is generally in two parts: The first 3 bytes are the MAC Address vendor ID generally shared by hundreds or even tens of thousands of devices produced by the manufacturer; the second set of three bytes are unique to the device.

A 48-bit Ethernet MAC address has two components, each of which is 24 bits:

*24-bit Organizational Unique Identifier (OUIIEEE regulates the assignment of OUI numbers. Within the OUI, the two following bits have meaning only when used in the destination address:

  1. Broadcast or multicast bit - indicates to the receiving interface the frame is destined a group of end stations on the LAN segment.
  2. Locally administered address bit - normally combines OUI and a 24-bit station address. This is universally unique; however, if the address is modified locally, this bit should be set. Some vendors like Apple set this bit automatically.

Generally, the MAC address is not changed by the end user, thus dynamic IP addresses are often not used to track or report on mobile phone devices. Organizations using NetFlow and IPIX can in fact track these MAC addresses.

MAC Addresses and NetFlow
Traditional flow data (e.g., NetFlow v5) exports IP addresses, but not MAC addresses. NetFlow v9 and IPFIX introduce the ability to export any information on the router including MAC address.

A reliable Network Traffic Analyzer can be used to report to report on NetFlow and IPFIX. The NetFlow Analyzer should offer a filtering architecture to allow traffic analysts to include or exclude portions of MAC addresses. If the administrator wants to narrow a particular vendor (e.g., 00.00.0c) or the iPhone (e.g., 60:33:4b, 64.b9.38, etc.), a reporting tool can filter on these vendor IDs. Once vendor IDs are added to the report, the type can be changed to view different reports. For example, the top domains these mobile devices are visiting can be obtained if the router, switch, or firewall exporting the NetFlow or IPFIX includes URL information. The IT manager can often click on the domain (e.g. facebook.com) and look at URLs visited with mobile device.

Tracking BYOD
By forcing users to authenticate all devices onto the network and agreeing to an operating system scan, network administrators can maintain an active inventory of who (i.e., username) authenticated onto the network and with what type of device. Detailed reports can be run on the volume of iPhones, Androids, Blackberries, iPads, etc. that have authenticated onto the network. Since the MAC address is obtained from every authenticated device, it can be cross referenced with the NetFlow and IPFIX received to look at traffic patterns. This is a much more scalable solution and less error prone approach than the traditional track-down-all-the-mac-addresses approach.

Smartphones: Network Security Challenge
Allowing smartphone access to corporate resources often requires adapting new corporate mobile strategies and policies. Many companies provide VPN access to the corporate network from computers when working remotely. While VPNs offer a secure connection by encapsulating data, many smartphones don't support them (e.g., iPhone). This is partly because the hardware doesn't have the processing power to keep up with encryption processes on-the-fly. Due to pressure from management and remote users, VPN enforcement is often lax. Most employees obtain corporate access from any public network, which includes public places like local coffee shops. This opens Pandora's Box when it comes to security threats.

Smartphones are an ideal tool for cybercriminals to push their malware, viruses, worms and other threats onto corporate networks. With many important titles, email addresses and phone numbers sitting on just about every network-capable mobile phone, stealing confidential emails or pushing botnets onto the company network is easier with traditional security measures put aside in favor of easy remote access. With smartphone synchronization, infection can easily migrate onto a PC - a Trojan horse method that infects the PC could provide access to the corporate network. On the other hand, the data carried on smartphones can be targeted through malware on PCs.

Direct Attacks on the Mobile Phone
Some employees try to increase the security of their phone with special anti-theft software or by encrypting their memory card. These solutions are aimed at making data protected from physical attacks. However, those are done by pickpockets, who are less interested in the mobile phone content than reusing or reselling the device.

Cybercriminals do care about sensitive information stored on smartphones, but they don't need physical access to the phone to retrieve it. Rather, they will exploit any vulnerability - for instance in the phone's Web browser (such as the WebKit vulnerabilities on Android phones) - or use social engineering tricks to install malware on the phone. Once the phone is infected, it's easy for the cybercriminal to access any data on the device. In those cases, the locks are useless and the memory card is dynamically decrypted when used.

Businesses must add employees to the corporate network easily and cost-effectively while maintaining desired security levels and remote management capabilities. Traditionally, the RIM BlackBerry Enterprise Server (BES) has been the gold standard among organizations with corporate-liable policies, providing sophisticated security and management capabilities.

However, smartphones like Androids and iPhones are becoming more popular, and some organizations feel obligated to embrace these as part of the employee-owned smartphone strategy. These are also supporting minimum security requirements, like timed-lock and remote wipe in the case of a lost or stolen handset. Some mobile apps, like Touchdown for Android, provide Exchange ActiveSync capabilities that support security policies to ensure security of the corporate data on the smartphone. Clearly, organizations need to rethink their mobile Smartphone strategies and take into account the proliferation of employee-owned smartphones.

Setting up single sign-on is another strategy that could be implemented on corporate networks. However, as of today, it's not supported on the iPhone. Whatever the decision, a careful evaluation of mobile devices accessing the network needs to be executed.

Ultimately, the question is: Do employees really need access to the corporate network via their smartphones? If they are provided access, then IT must secure the network to make sure the onslaught of online holiday shopping and sales offerings don't turn the season to "nightmare" before Christmas for the network bandwidth.

So, this holiday season, stay safe out there and don't forget to drive safe - on the road and in cyberspace.

More Stories By Michael Patterson

Michael Patterson, is the founder & CEO of Plixer and the product manager for Scrutinizer NetFlow and sFlow Analyzer. Prior to starting Somix and Plixer, Mike worked in a technical support role at Cabletron Systems, acquired his Novell CNE and then moved to the training department for a few years. While in training he finished his Masters in Computer Information Systems from Southern New Hampshire University and then left technical training to pursue a new skill set in Professional Services. In 1998 he left the 'Tron' to start Somix and Plixer.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@CloudExpo Stories
"ZeroStack is a startup in Silicon Valley. We're solving a very interesting problem around bringing public cloud convenience with private cloud control for enterprises and mid-size companies," explained Kamesh Pemmaraju, VP of Product Management at ZeroStack, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
In his session at 21st Cloud Expo, Carl J. Levine, Senior Technical Evangelist for NS1, will objectively discuss how DNS is used to solve Digital Transformation challenges in large SaaS applications, CDNs, AdTech platforms, and other demanding use cases. Carl J. Levine is the Senior Technical Evangelist for NS1. A veteran of the Internet Infrastructure space, he has over a decade of experience with startups, networking protocols and Internet infrastructure, combined with the unique ability to it...
"Codigm is based on the cloud and we are here to explore marketing opportunities in America. Our mission is to make an ecosystem of the SW environment that anyone can understand, learn, teach, and develop the SW on the cloud," explained Sung Tae Ryu, CEO of Codigm, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
High-velocity engineering teams are applying not only continuous delivery processes, but also lessons in experimentation from established leaders like Amazon, Netflix, and Facebook. These companies have made experimentation a foundation for their release processes, allowing them to try out major feature releases and redesigns within smaller groups before making them broadly available. In his session at 21st Cloud Expo, Brian Lucas, Senior Staff Engineer at Optimizely, discussed how by using ne...
"There's plenty of bandwidth out there but it's never in the right place. So what Cedexis does is uses data to work out the best pathways to get data from the origin to the person who wants to get it," explained Simon Jones, Evangelist and Head of Marketing at Cedexis, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Large industrial manufacturing organizations are adopting the agile principles of cloud software companies. The industrial manufacturing development process has not scaled over time. Now that design CAD teams are geographically distributed, centralizing their work is key. With large multi-gigabyte projects, outdated tools have stifled industrial team agility, time-to-market milestones, and impacted P&L stakeholders.
"Cloud Academy is an enterprise training platform for the cloud, specifically public clouds. We offer guided learning experiences on AWS, Azure, Google Cloud and all the surrounding methodologies and technologies that you need to know and your teams need to know in order to leverage the full benefits of the cloud," explained Alex Brower, VP of Marketing at Cloud Academy, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clar...
Gemini is Yahoo’s native and search advertising platform. To ensure the quality of a complex distributed system that spans multiple products and components and across various desktop websites and mobile app and web experiences – both Yahoo owned and operated and third-party syndication (supply), with complex interaction with more than a billion users and numerous advertisers globally (demand) – it becomes imperative to automate a set of end-to-end tests 24x7 to detect bugs and regression. In th...
Enterprises are moving to the cloud faster than most of us in security expected. CIOs are going from 0 to 100 in cloud adoption and leaving security teams in the dust. Once cloud is part of an enterprise stack, it’s unclear who has responsibility for the protection of applications, services, and data. When cloud breaches occur, whether active compromise or a publicly accessible database, the blame must fall on both service providers and users. In his session at 21st Cloud Expo, Ben Johnson, C...
"Infoblox does DNS, DHCP and IP address management for not only enterprise networks but cloud networks as well. Customers are looking for a single platform that can extend not only in their private enterprise environment but private cloud, public cloud, tracking all the IP space and everything that is going on in that environment," explained Steve Salo, Principal Systems Engineer at Infoblox, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Conventio...
Data scientists must access high-performance computing resources across a wide-area network. To achieve cloud-based HPC visualization, researchers must transfer datasets and visualization results efficiently. HPC clusters now compute GPU-accelerated visualization in the cloud cluster. To efficiently display results remotely, a high-performance, low-latency protocol transfers the display from the cluster to a remote desktop. Further, tools to easily mount remote datasets and efficiently transfer...
"MobiDev is a software development company and we do complex, custom software development for everybody from entrepreneurs to large enterprises," explained Alan Winters, U.S. Head of Business Development at MobiDev, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"We're developing a software that is based on the cloud environment and we are providing those services to corporations and the general public," explained Seungmin Kim, CEO/CTO of SM Systems Inc., in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Agile has finally jumped the technology shark, expanding outside the software world. Enterprises are now increasingly adopting Agile practices across their organizations in order to successfully navigate the disruptive waters that threaten to drown them. In our quest for establishing change as a core competency in our organizations, this business-centric notion of Agile is an essential component of Agile Digital Transformation. In the years since the publication of the Agile Manifesto, the conn...
SYS-CON Events announced today that CrowdReviews.com has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5–7, 2018, at the Javits Center in New York City, NY. CrowdReviews.com is a transparent online platform for determining which products and services are the best based on the opinion of the crowd. The crowd consists of Internet users that have experienced products and services first-hand and have an interest in letting other potential buye...
The question before companies today is not whether to become intelligent, it’s a question of how and how fast. The key is to adopt and deploy an intelligent application strategy while simultaneously preparing to scale that intelligence. In her session at 21st Cloud Expo, Sangeeta Chakraborty, Chief Customer Officer at Ayasdi, provided a tactical framework to become a truly intelligent enterprise, including how to identify the right applications for AI, how to build a Center of Excellence to oper...
"IBM is really all in on blockchain. We take a look at sort of the history of blockchain ledger technologies. It started out with bitcoin, Ethereum, and IBM evaluated these particular blockchain technologies and found they were anonymous and permissionless and that many companies were looking for permissioned blockchain," stated René Bostic, Technical VP of the IBM Cloud Unit in North America, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Conventi...
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
In his session at 21st Cloud Expo, James Henry, Co-CEO/CTO of Calgary Scientific Inc., introduced you to the challenges, solutions and benefits of training AI systems to solve visual problems with an emphasis on improving AIs with continuous training in the field. He explored applications in several industries and discussed technologies that allow the deployment of advanced visualization solutions to the cloud.
While some developers care passionately about how data centers and clouds are architected, for most, it is only the end result that matters. To the majority of companies, technology exists to solve a business problem, and only delivers value when it is solving that problem. 2017 brings the mainstream adoption of containers for production workloads. In his session at 21st Cloud Expo, Ben McCormack, VP of Operations at Evernote, discussed how data centers of the future will be managed, how the p...