TATA TELESERVICES - EMC

TATA TELESERVICES
Indian telecom leader secures enterprise
IT network with SIEM platform
AT-A-GLANCE
Key Requirements
– Resolve issues such as supplier and
distributor access to the network
and multi-level outsourcing
– Ability to continuously monitor,
measure, and enforce IT controls
– Automated incident and threat
management
Solution
– Sister company, Tata Consultancy
Services (TCS), developed a
centralized security-management
system
– Chose SIEM solution as the
SOC’s underpinning technology
Results
– Gained enterprise-wide network
view
– Proactive prevention of network
incidents, simplification of
mandatory compliance, and
enhancement of security
– Ensured business continuity by
helping to identify network and
equipment issues
CUSTOMER
PROFILE
“ TCS proactively monitors the complex IT infrastructure of TTSL
and has added value to the business by containing internal and
Internet-based threats to our satisfaction. We are satisfied with
TCS on SOC monitoring. The RSA enVision platform is a robust
and reliable solution and we are delighted by the services
delivered by TCS.”
SHIRISH DANDEKAR, INFORMATION SECURITY OFFICER, SENIOR MANAGER, TATA TELESERVICES
Tata Teleservices Ltd is one of India’s leading private telecom service
providers. The company offers a wide range of telecom solutions to its
customers under the Tata Indicom and Tata Docomo brands and uses the
latest GSM and CSDMA technologies for its wireless network. TTSL along
with Tata Teleservices (Maharashtra) Ltd serves more than 60 million
customers in more than 320,000 towns across 23 areas in the country.
KEY REQUIREMENTS
Tata Teleservices has rapidly become one of India’s leading telecoms operators. This has
been achieved by acquiring companies in the sector and broadening its product portfolio
to include value-added offerings such as Wimax, broadband, and pay-as-you-go. This
last service in particular has proved to be extremely popular, with the company acquiring
7.3 million customers in one month and enhancing its reputation as one of India’s most
forward-looking telco operators.
The company has ambitious growth plans for which it needed a centralized securitymanagement
system to accommodate its mergers, subsidiaries, and acquisitions; a
broadening services portfolio; and increasing geographical reach. The system needed
to resolve such issues as network access for suppliers and distributors, multi-level
outsourcing, and a distributed infrastructure.
From the technology perspective, challenges revolved around a complex IT infrastructure,
the geographical spread of users, and high volumes of data. Specifically, it needed a
reliable, integrated view of regulated data and systems and the ability to continuously
monitor, measure, and enforce IT controls. It also required a security incident and event
management system that enabled centralized monitoring and incident logging and
processed multiple queries on a high-volume log database.

“ We used the RSA enVision
platform to develop a Security
Operations Center for Tata
Teleservices which was
essential to ensure the
company could address
the constraints that were
hampering its growth.
Tata Teleservices can now
accelerate its expansion plans,
safe in the knowledge that
Tata Consultancy Services’
expertise and industry-leading
security technology has
provided confidentiality,
integrity, and availability
of critical assets.”
SHAIK ABDUL KHADER, INFORMATION
SECURITY CONSULTANT, SENIOR MANAGER,
TATA CONSULTANCY SERVICES
CONTACT US
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contact your local representative or
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SOLUTION
Tata Consultancy Services (TCS), a sister company of Tata Teleservices, was charged with
developing a centralized management system. TCS has had a strategic relationship with
TTSL since 1998, managing its IT infrastructure and providing relevant services. TTSL’s
Security Operations Center (SOC) has been managed by TCS since November 2007 and
its activities cover a wide range of services including fraud monitoring and management,
systems availability, website monitoring, and transaction monitoring.
The implementation of the SOC was carried out in accordance with guidelines from
the National Institute of Standards and Technology. At the center of the SOC is RSA ®
enVision ® , from RSA, The Security Division of EMC. TCS had previously compared RSA
enVision with similar SIEM products and concluded that it offered the greatest flexibility,
ease-of-integration, and robust reliability. As a result, it now recommends the product to
companies within the Tata Group.
RSA enVision is a 3-in-1 platform capable of collecting and analyzing large amounts of
data in real time, from any event source, and in computing environments of any size. It
is easily scalable and eliminates the need for filtering or deploying agents. It simplifies
compliance and enhances security through real-time notification of high-risk events and
the delivery of actionable intelligence.
TCS also leveraged the standard reports within RSA enVision to deliver customized
reports for different audiences and requirements. These include management reports
for senior management, compliance reports for auditors, security reports for information
security management, and technical reports for network administrators, systems
administrators, help desk, and so on.
RESULTS
TCS’s understanding of the SIEM solution and expertise helped to deliver a smooth
implementation and some important features and benefits for Tata Teleservices. This
included architecture to facilitate log collection from a myriad of devices across a network
geography that extended across India. For example, the distributed network had multiple
gateways to the Internet which needed to be monitored. Approximately 6,500 event
sources are being monitored each second.
TCS also configured correlation rules within the SIEM to receive genuine alerts and
eliminate false positives to ensure an effective and proactive monitoring process. The
use of the solution’s alerts module provided an in-depth understanding of the alerts
generated by various devices and appropriate responses.
A comprehensive knowledge base, which contains details of incidents, root causes, and
solutions, ensures quicker resolution of incidents. TCS also developed a centralized portal
to provide a repository and workflow process for managing reports generated by the SIEM
and for posting schedules, announcements, documents, the knowledge base, and more.
Tata Teleservices now has a comprehensive SIEM solution that addresses both the
business and technical challenges that were constraining the company from achieving
its aims to become one of the leading telecommunications providers in India.
2011 EMC Corporation. EMC, the EMC logo, RSA, the RSA logo, and enVision are trademarks or registered
trademarks of EMC Corporation in the U.S. and/or other countries. All other trademarks mentioned are the
property of their respective holders. TTSL CP 0211