Sunday, November 08, 2009
Google  
Web voicendata.com
 RSS | Archive    
• Saarc CEO Conclave 2009 at Dhaka, Bangladesh from October 30 to November 1, 2009
 Home > GOLDBOOK > GOLDBOOK 2007 > Network Security: No Scope for Complacency
  GOLDBOOK 2007
Network Security: No Scope for Complacency
Continued from page: 1

Tuesday, March 13, 2007

Managed Security Service Providers: Multifold Benefits

24x7 Monitoring
It is estimated that almost 60% of the attacks happen during the graveyard shift-a period where availability of skilled resources is always in question. To proactively detect and respond to attacks, 24x7 monitoring becomes an imperative. 24x7 monitoring involves a three-shift operation. Even if just one security expert per shift is enough, (which is a difficult presumption considering high domain specialization required in data security) an organization will require at least three security experts for round-the-clock monitoring which would be a huge cash outflow.

Powerful Event Correlation
In a corporate environment, event handling tends to become people dependent. Given the inconsistency in event occurrence, it becomes difficult to co-relate similar incidents to detect an attack. Moreover, organizations do not work on Standard Operating Procedures which are required to effectively diffuse an attack. Even after having an inhouse expert look at an event, one is not confident of the type of attack that has happened and the effective method to resolve the same. MSSPs provide automated event co-relation capabilities that list events with similar patterns and co-relate them to detect an attack.

Managing False Alerts
False positives constitute 99% of total security alerts, making it extremely difficult to segregate the 1% of real alerts. A typical firewall generates thousands of alerts a day while an IDS can generate millions of raw logs of data that becomes practically impossible to interpret. MSSPs have automated tools that segregate the 1% actual attacks from the false positives making security management a much easier task.

Emergency Response
Emergency response becomes difficult if an enterprise is managing its security inhouse. The security team is either not available or doesn't have adequate tools, processes, policies to respond to an attack. MSSPs operate on Standard Operating Procedures that ensure near real time response to all security incidents.

Reporting and Documenting Events
Inhouse reporting tools provide limited or no visibility into the security infrastructure. Either the organization tends to completely ignore the reporting aspect or delegate it to lesser-qualified resources. Reporting becomes extremely crucial for forensics and also to analyze the type of event and method to counter it. MSSPs provide real-time visibility into the security infrastructure letting a CIO know the status of his network at any point of time.

Upgrades and Patches
Security vendors come out with new patches on a regular basis. The high frequency of patch release and multiplicity of security products make it difficult for the organization to upgrade these patches time to time.

Trained and Dedicated Professionals
Certified security professionals at an MSSP undergo extensive security training and rigorous background checks prior to managing or monitoring an organization's equipment.

Guaranteed Responsiveness
An MSSP begins escalation the moment a problem is detected and the source is identified. Aggressive Service Level Agreements (SLAs) ensure that an organization will be notified immediately.

Enhanced Internet Security
This is critical, if governments and businesses are to move high-value transactions and sensitive information online. For many organizations, a managed security service represents the most effective approach to deploying enhanced Internet security.


Ten Commandments of Network Security

The following are essential for your information security program to be effective:

  • Make sure the CXO "owns" the information security program and assign senior-level staff with responsibility for information security.

  • Establish a cross-functional information security governance board.

  • Establish metrics to manage the program.

  • Implement an ongoing security improvement plan.

  • Conduct an independent review of the information security program by conducing regular surveillance audits.

  • Implement suitable security technologies, example Layer security at gateway, server, and client.

  • Separate your computing environment into "zones".

  • Start with basics and then improve the program.

  • Consider information security an essential investment for your business.

  • Conduct regular Security Awareness program for the staff.

A Tough Job For The Network Managers
A CIO has a tough task. He has to ensure the security of the network, but also work within a specified budget. He is under pressure to optimize the return on investment on one hand, while having to serve the latest upgrades on the other. He has to plan his security policy and architecture keeping long-term goals in mind and also deal with multiple vendors in a fast-changing technology environment.

Enterprises do not receive threats from only one source. Sample this: About 26 to 32% of the causes of data-loss are due to human error such as accidental deletion and lost passwords. About 44 to 56% of the causes of data loss are due to hardware problems or malfunctions; 2 to 3% of the causes of data loss are due to natural disasters including power surges.

Enterprises thus face threats from their employees, network and applications, and natural disasters. Hence, CIOs face the challenge to decide where exactly they should start implementing security. They have to consider all the three factors while implementing any kind of security policy.

The advice to the CIO is to adopt the best practices in the industry. However, he should also keep in mind his requirements. Adopting the best of breed might not always be successful. Security solutions should be custom-built and be very specific to each business' needs and infrastructure. The key challenge for any CIO is to make the overall security strategy. And while doing this he has to assess his current requirement looking at future growth and also identify critical areas to be addressed. Preparing a road map after taking into account escalations and scalability, is a good way to start.


The Evolution of Mobile Viruses

Viruses affecting mobile phones are a relatively new phenomenon. One of the first significant attacks involving mobile phones occurred in June 2000 and focused on a specific mobile operator. The first viruses to attack handheld device also occurred in 2000. Viruses such as liberty, Phage, and vapor affected devices using the palm OS has not been subject to further virus attacks. However, malware affecting devices using other operating systems has occurred since that time

NTT DoCoMo malware attack: During August 2001, Japanese users of NTT DoCoMo's in mode found their phones started to dial 110-the Japanese equivalent of 911 emergency assistance if they answered 'yes' to a certain question during an online quiz regarding love. Japanese police switchboards were swamped with bogus calls that prevented authorities from responding to true emergencies. NTT DoCoMo has now corrected the vulnerability exploited by the attack.

Symbian Viruses: Beginning in 2004 and continuing in 2005, viruses affecting symbian OS and the Microsoft windows Mobile OS have significantly increased. Symbian OS in particular has suffered from virus outbreaks affecting device using Symbian OS 7.0s with the series 60 platform user interface, the software used in most Nokia smartphones. The Cabir attack, which occurred in June 2004 was followed by a steady stream of variants and permutations including Qdial, Skulls, Velasco, Locknut, and Dampig.

Cabir and its offspring represent proof of concept malware that has propagated effectively and cause little damage. These initial viruses represent the hacker community experimenting with a new technology. Cabir used Bluetooth wireless connectivity to transmit itself; Blue-tooth transmissions are limited to 10 meters in distance. The infected device would search for other Bluetooth devices in discoverable mode and then the target device would have to click through four dialog boxes to actually infect the mobile device.

Although the Cabir virus did not propagate to any significant degree, the increasing frequency of its variants demonstrates that virus writers are becoming better at writing viruses for mobile devices. Subsequent malware- Comwar and Mabir used more effective methods particularly through MMS.

Smart phones and mobile messaging malware: Built in messaging capabilities of smart phones make them a natural target for messaging worms. A virus can leverage the phones integrated messaging capability to propagate other phones. This malicious code can use the phone's address book to finds new targets. For example, devices infected with the Mabir virus, which affects Symbian 0S 7.0 with the series 60 platform user interface, will attempt to infect other devices supporting MMS by responding to received SMS or MMS messages and sending a copy of the virus by MMS. This interrupts user productivity, drains the battery, can increase MMS charges, and provides the potential to damage a user's reputation among friends and business colleagues. Although they are not yet common. Protecting phones from mobile messages with malicious payloads, also known as mobile messaging malware, is an essential component of any antivirus solution.

Security Trends
'The Bad guys are making money'-this is the trend. This is a really dangerous trend that has been going on now for three years and since they are making money, there is the incentive for them to continue. They also have more resources to come up with even nastier threats. There has been a gradual attitude change of customers who are going in for multiple products for specialized purposes. Organizations are going in for Unified Threat Management technologies, by which a single device performs the role of a firewall, anti-virus and IDS equipment. CIOs are increasingly going in for Information Security Management Systems which give them a 360 degree look at information systems and data, and include measures to mitigate all forms of threats.

Many organizations are focusing on network security but the trend is going to change as organizations have started giving priority to secure their database. According to Noel Yuhanna, Senior Analyst Forrester, "Database security will continue to gain importance across the industry, especially for those storing private data, primarily driven by increased intrusions and growing regulatory requirements." Add to this, increasing compliance requirements, which increase the importance of implementing effective security standards.

Gyan Ranjan Swain
gyanas@cybermedia.co.in

Page(s)   1  2  

Print Comment Email DiggDigg DeliciousDel.icio.us RedittReddit
Structured Cabling: Strengthening the Backbone
Wireline Infrastructure: Awaiting Broadband Push
WLAN: Smoothening Wireless Expansion
 





 

Current Issue


ZTE:Leading CDMA Technology


Extraordinary Networks:Freedom of Choice





Your Opinion Matters

Does cloud computing cast a cloud on the future of IT professionals?

Is your Accounts Payable Solution working for you? Think Again…


   CIOL Services
IT News | IT Jobs | IT Outsourcing | IT Shopping
 



  For Voice&Data Print Subscription
  [ Magazine Subscription ]  [ Contact Info ]  [ Advertise : Online | Magazine | Advertising Print | Mediakit Print ]

 
Other CyberMedia web sites
[Dataquest]  [PCQuest]  [CIOL]  [Living Digital]  [IDC India]
[DQ Channels]  [The DQweek]  [CyberMedia Events]
[CyberMedia Digital]  [Cyber Astro]  [CyberMedia India]
[Global Services]  [BioSpectrum]  [BioSpectrum Asia]
[Computer Shopper]   [College Buying Guide]   [Voice&DataConnect

CyberMedia India Ltd

 
  Copyright © CMIL. All rights reserved.
Reproduction in whole or in part in any form or medium without express written permission is prohibited.
Usage of this web site is subject to terms and conditions.
Broken links? Problems with site? Send email to
webmaster@ciol.com