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Managed Security Service
Providers: Multifold Benefits |
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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. |
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| Ten
Commandments of Network Security |
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The following are
essential for your information security program to be effective:
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Make sure the CXO
"owns" the information security program and assign senior-level
staff with responsibility for information security.
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Establish a cross-functional information security governance board.
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Establish metrics to manage the program.
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Implement an ongoing security improvement plan.
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Conduct an independent review of the information security program by
conducing regular surveillance audits.
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Implement suitable security technologies, example Layer security at
gateway, server, and client.
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Separate your computing environment into "zones".
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Start with basics and then improve the program.
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Consider information security an essential investment for your business.
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Conduct regular Security Awareness program for the staff.
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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.
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| The
Evolution of Mobile Viruses |
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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
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