The Internet has changed the way consumers buy, sell, understand and interface
with businesses. The explosion of web applications introduces a host of new
and ever-changing threats to data security that put organizations and consumers
at risk. Hackers are continuously finding new ways to exploit these applications
and skirt existing security measures. What are the top web security challenges
for 2009? And how can businesses protect against and remediate these threats?
IDC predicts the web security appliance market to grow at a rate of 23.6 percent
per year for the next five years, from $256.7 million in 2007 to $745.4 million
by 2012. Such robust growth is not surprising -- the SANS Institute reports
that 50 percent of web applications have major vulnerabilities. Due to the escalation
of threats and high profile security breaches reported over the past few years,
companies are recognizing that web application security is no longer an option,
but a must.
The security paradigm shift
Web applications have fundamentally changed the security game. Most IT professionals
have traditionally been responsible for securing networks with established technologies
such as network firewalls, intrusion detection systems (IDS) and SSL VPNs. Corporate
networks are relatively static from environment to environment and are not equipped
to deal with the unique and complex security requirements of web applications.
Companies may have dozens or even hundreds of web applications available on
their websites, and many of these applications change every day.
To compound the challenges, no two web applications are the same. If two competing
banks offer online bill pay functionality, the underlying web applications powering
the function will be entirely different. As such, web applications can originate
from multiple sources, including internal development, outsourcing, third-party
packages, or inherited through merger or acquisition. It is especially challenging
to secure web applications when the application code may not even be accessible.
Web application security challenges, threats and solutions
In the last year, attacks against web applications have expanded in scope from
attempts to extract credit card information from ecommerce sites using automated
mass SQL injection bots to scraping entire libraries of valuable information
from subscription-based sites. While web attacks come in a variety of flavors,
there are a few common elements that put businesses at risk and allow hackers
to steal databases of information. By understanding the commonalities, security
teams can better protect their data.
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