McKinsey's just released report on its third annual survey of the usage and benefits of Web 2.0 technology was enlightening as far as it went. However, it completely ignores the IT security risks Web 2.0 creates. Furthermore, traditional IT security products do not mitigate these risks. If we are going to deploy Web 2.0 technology, then we need to upgrade our security to, dare I say, "IT Security 2.0."
Even if Web 2.0 products had no vulnerabilities for cybercriminals to exploit, which is not possible, there is still the need for a control function, i.e. which applications should be allowed and who should be able to use them. Unfortunately traditional security vendors have had limited success with both. Fortunately, there are security vendors who have recognized this as an opportunity and have built solutions which mitigate these new risks.
In the past, I had never subscribed to the concept of security enabling innovation, but I do in this case. There is no doubt that improved communication, learning, and collaboration within the organization and with customers and suppliers enhances the organization's competitive position. Ignoring Web 2.0 or letting it happen by itself is not an option. Therefore when planning Web 2.0 projects, we must also include plans for mitigating the new risks Web 2.0 applications create.
The Web 2.0 good news - The survey results are very positive:
"69 percent of respondents report that their companies have gained measurable business benefits, including more innovative products and services, more effective marketing, better access to knowledge, lower cost of doing business, and higher revenues.
Companies that made greater use of the technologies, the results show, report even greater benefits. We also looked closely at the factors driving these improvements—for example, the types of technologies companies are using, management practices that produce benefits, and any organizational and cultural characteristics that may contribute to the gains. We found that successful companies not only tightly integrate Web 2.0 technologies with the work flows of their employees but also create a “networked company,” linking themselves with customers and suppliers through the use of Web 2.0 tools. Despite the current recession, respondents overwhelmingly say that they will continue to invest in Web 2.0."
The Web 2.0 bad news - Web 2.0 technologies introduce IT security risks that cannot be ignored. The main risk comes from the fact that these applications are purposely built to bypass traditional IT security controls in order to simplify deployment and increase usage. They use techniques such as port hopping, encrypted tunneling, and browser based applications. If we cannot identify these applications and the people using them, we cannot monitor or control them. Any exploitation of vulnerabilities in these applications can go undetected until it's too late.
A second risk is bandwidth consumption. For example, unauthorized and uncontrolled consumer-oriented video and audio file sharing applications consume large chunks of bandwidth. How much? Hard to know if we cannot see them.
In case we need some examples of the bad news, just in the last few days see here, here, here, and here.
The IT Security 2.0 good news - There are new IT Security 2.0 vendors who are addressing these issues in different ways as follows:
Database Activity Monitoring - Since we cannot depend on traditional perimeter defenses, we must protect the database itself. Database encryption, another technology, is also useful. But if someone has stolen authorized credentials (very common with trojan keyloggers), encryption is of no value. I discussed Database Activity Monitoring in more detail here. It's also useful for compliance reporting when integrated with application users.
User Activity Monitoring - Network appliances designed to monitor internal user activity and block actions that are out of policy. Also useful for compliance reporting.
Web Application Firewalls - Web server host-based software or appliances specifically designed to analyze anomalies in browser-based applications. WAFs are not meant to be primary firewalls but rather to be used to monitor the Layer 7 fields of browser-based forms into which users enter information. Cybercriminals enter malicious code which, if not detected and blocked, can trigger a wide range of exploits. It's also useful for PCI compliance.
"Web 2.0" Firewalls - Next generation network firewalls that can detect and control Web 2.0 applications in addition to traditional firewall functions. They also identify users and can analyze content. They can also perform URL filtering, intrusion prevention, proxying, and data leak prevention. This multi-function capability can be used to generate significant cost reductions by (1) consolidating network appliances and (2) unifying policy management and compliance reporting.
I have heard this type of firewall referred to as an Application Firewall. But it seems confusing to me because it's too close to Web Application Firewall, which I described above and performs completely different functions. Therefore, I prefer the term, Web 2.0 Firewall.
In conclusion, Web 2.0 is real and IT Security 2.0 must be part of Web 2.0 strategy. Put another way, IT Security 2.0 enables Web 2.0.
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