Nortel, Symantec Secure Enterprise Networks Against Intrusions, Vulnerabilities

Toronto (ots/PRNewswire) -

- Proactive Network Protection Addresses Threats Deep in the
Network

www.nortel.com

Nortel(x) (NYSE/TSX: NT) today introduced the Nortel Application
Switch with Symantec Intelligent Network Protection. The
collaborative effort between Nortel and Symantec aims to ensure
critical threats are identified and stopped before they can
penetrate a company's network infrastructure and impact business.

Vulnerabilities, and the hackers who exploit them, are steadily
increasing around the world, leaving IT organizations open to attack
during the gap between discovery of a threat and deployment of a
patch to protect against the new threat. Nortel's Application Switch
with Symantec Intelligent Network Protection is designed to close
that gap protecting against critical network-based threats. The new
solution is expected to be available to customers in June.

Symantec Intelligent Network Protection incorporates Symantec's
network intrusion prevention technologies into Nortel's Application
Switch and complements existing network intrusion prevention and
detection systems on the network. The Symantec technologies include
an intelligent security inspection engine, automatic real-time
threat protection updates and security content updates backed by
Symantec.

"In today's world of increasingly sophisticated network attacks,
security threats are top of mind with network administrators," said
Bruce Meyer, senior network engineer, ProMedica Health System.
"Nortel is making network security simple for us by integrating an
additional layer of security into its Application Switch, giving us
confidence that critical threats are being stopped at the edge of the
ProMedica network."

To ensure the most up-to-date protection, Nortel customers can
download the current security updates through Symantec LiveUpdate,
providing customers real-time protection against the latest threats.
Threat prevention updates provide proactive protection during
critical threat outbreaks and secure unpatched systems against
vulnerabilities in operating systems and applications.

"Coupling Nortel's ability to optimize and inspect network traffic
with Symantec's intrusion prevention and security update
technologies addresses the needs of both network and security
administrators in an increasingly converged network environment,"
said Jeremy Burton, senior vice president, Security and Data
Management Group, Symantec. "It builds on the defense-in- depth
strategy so critical to the protection of today's networks."

"Enterprises require comprehensive network solutions that protect
their infrastructure from end-users who may inadvertently compromise
security from remote-access based threats as well as threats deep in
the network that require immediate isolation and containment," said
Cindy Borovick, director, IDC. "Continually monitoring the network
for malicious activity is key to ensuring that if an attack slips
through other layers of security , the datacenter network will detect
it and take appropriate actions to block the attack and prevent
interruption to critical business communications."

Nortel's Application Switch is uniquely positioned to increase
network security by leveraging highly specialized deep packet
inspection capabilities. The Application Switch increases the
availability, performance and security of applications by providing
layer 4-7 inspection at layer 2 speeds.

Nortel's Application Switch with Symantec Intelligent Network
Protection solution is a key component of Nortel's layered defense
approach to network security. Nortel has made secure connectivity
available to more than 100 million government, business and
individual users worldwide. More information on Nortel security
solutions can be found at www.nortel.com/enterprisesecurity.

About Symantec

Symantec is the world leader in providing solutions to help
individuals and enterprises assure the security, availability, and
integrity of their information. Headquartered in Cupertino, Calif.,
Symantec has operations in more than 40 countries. More information
is available at www.symantec.com.

About Nortel

Nortel is a recognized leader in delivering communications
capabilities that enhance the human experience, ignite and power
global commerce, and secure and protect the world's most critical
information. Our next- generation technologies, for both service
providers and enterprises, span access and core networks, support
multimedia and business-critical applications, and help eliminate
today's barriers to efficiency, speed and performance by simplifying
networks and connecting people with information. Nortel does
business in more than 150 countries. For more information, visit
Nortel on the Web at www.nortel.com. For the latest Nortel news,
visit www.nortel.com/news.

Certain statements in this press release may contain words such as
" could", "expects", "may", "anticipates", "believes", "intends",
"estimates ", "plans", "envisions", "seeks" and other similar
language and are considered forward-looking statements or
information under applicable securities legislation. These
statements are based on Nortel's current expectations, estimates,
forecasts and projections about the operating environment, economies
and markets in which Nortel operates. These statements are subject
to important assumptions, risks and uncertainties, which are
difficult to predict and the actual outcome may be materially
different. Although Nortel believes expectations reflected in such
forward- looking statements are reasonable based upon certain
assumptions, they may prove to be inaccurate and consequently
Nortel's actual results or events could differ materially from its
expectations set out in this press release . Further, actual results
or events could differ materially from those contemplated in
forward-looking statements as a result of the following (i) risks
and uncertainties relating to Nortel's restatements and related
matters including: Nortel's most recent restatement and two previous
restatements of its financial statements and related events; the
negative impact on Nortel and NNL of their most recent restatement
and delay in filing their financial statements and related periodic
reports (including the anticipated delay in filing the Quarterly
Reports on Form 10-Q for the first quarter of 2006) causing them to
breach their public debt indentures and, if the delay extends beyond
June 15, 2006, their obligations under their credit facilities, with
the possibility that the holders of their public debt or NNL's
lenders would seek to accelerate the maturity of that debt, and
causing, if the delay extends beyond June 15, 2006, a breach of
NNL's support facility with EDC with the possibility that EDC would
refuse to issue additional support under the facility, terminate its
commitments under the facility or require NNL to cash collateralize
all existing support; legal judgments, fines, penalties or
settlements, or any substantial regulatory fines or other penalties
or sanctions, related to the ongoing regulatory and criminal
investigations of Nortel in the U.S. and Canada; any significant
pending civil litigation actions not encompassed by Nortel's
proposed class action settlement; any substantial cash payment
and/or significant dilution of Nortel's existing equity positions
resulting from the finalization and approval of its proposed class
action settlement, or if such proposed class action settlement is not
finalized, any larger settlements or awards of damages in respect of
such class actions; any unsuccessful remediation of Nortel's
material weaknesses in internal control over financial reporting
resulting in an inability to report Nortel's results of operations
and financial condition accurately and in a timely manner; the time
required to implement Nortel's remedial measures; Nortel's inability
to access, in its current form, its shelf registration filed with
the United States Securities and Exchange Commission (SEC), and
Nortel's below investment grade credit rating and any further
adverse effect on its credit rating due to Nortel's restatement of
its financial statements; any adverse affect on Nortel's business and
market price of its publicly traded securities arising from
continuing negative publicity related to Nortel's restatements;
Nortel's potential inability to attract or retain the personnel
necessary to achieve its business objectives; any breach by Nortel
of the continued listing requirements of the NYSE or TSX causing the
NYSE and/or the TSX to commence suspension or delisting procedures;
any default in Nortel's filing obligations extending beyond July 15,
2006 for the 2006 First Quarter Form 10-Qs, causing any Canadian
securities regulatory authority to impose an order to cease all
trading in Nortel's securities within the applicable jurisdiction or
to impose such an order sooner if Nortel fails to comply with the
alternate information guidelines of such regulatory authorities; (
ii) risks and uncertainties relating to Nortel's business including:
yearly and quarterly fluctuations of Nortel's operating results;
reduced demand and pricing pressures for its products due to global
economic conditions, significant competition, competitive pricing
practice, cautious capital spending by customers, increased industry
consolidation, rapidly changing technologies, evolving industry
standards, frequent new product introductions and short product life
cycles, and other trends and industry characteristics affecting the
telecommunications industry; any material and adverse affects on
Nortel's performance if its expectations regarding market demand for
particular products prove to be wrong or because of certain barriers
in its efforts to expand internationally; any reduction in Nortel's
operating results and any related volatility in the market price of
its publicly traded securities arising from any decline in its gross
margin, or fluctuations in foreign currency exchange rates; any
negative developments associated with Nortel's supply contract and
contract manufacturing agreements including as a result of using a
sole supplier for key optical networking solutions components, and
any defects or errors in Nortel's current or planned products; any
negative impact to Nortel of its failure to achieve its business
transformation objectives; additional valuation allowances for all
or a portion of its deferred tax assets; Nortel's failure to protect
its intellectual property rights, or any adverse judgments or
settlements arising out of disputes regarding intellectual property;
changes in regulation of the Internet and/or other aspects of the
industry; Nortel's failure to successfully operate or integrate its
strategic acquisitions, or failure to consummate or succeed with its
strategic alliances; any negative effect of Nortel's failure to
evolve adequately its financial and managerial control and reporting
systems and processes, manage and grow its business, or create an
effective risk management strategy; and (iii) risks and
uncertainties relating to Nortel's liquidity, financing arrangements
and capital including: the impact of Nortel's most recent
restatement and two previous restatements of its financial
statements; any acceleration under their public debt indentures and
credit facilities, which may result in Nortel and NNL being unable
to meet their respective payment obligations; any inability of
Nortel to manage cash flow fluctuations to fund working capital
requirements or achieve its business objectives in a timely manner or
obtain additional sources of funding; high levels of debt,
limitations on Nortel capitalizing on business opportunities because
of credit facility covenants, or on obtaining additional secured
debt pursuant to the provisions of indentures governing certain of
Nortel's public debt issues and the provisions of its credit
facilities; any increase of restricted cash requirements for Nortel
if it is unable to secure alternative support for obligations
arising from certain normal course business activities, or any
inability of Nortel's subsidiaries to provide it with sufficient
funding; any negative effect to Nortel of the need to make larger
defined benefit plans contributions in the future or exposure to
customer credit risks or inability of customers to fulfill payment
obligations under customer financing arrangements; any negative
impact on Nortel's ability to make future acquisitions, raise
capital, issue debt and retain employees arising from stock price
volatility and further declines in the market price of Nortel's
publicly traded securities, or any future share consolidation
resulting in a lower total market capitalization or adverse effect
on the liquidity of Nortel's common shares. For additional
information with respect to certain of these and other factors, see
the Company's Annual Report on Form 10-K/A and NNL's Annual Report
on Form 10-K and other securities filings with the SEC. Unless
otherwise required by applicable securities laws, Nortel disclaims
any intention or obligation to update or revise any forward-looking
statements, whether as a result of new information, future events or
otherwise.

(x)Nortel, the Nortel logo and the Globemark are trademarks of
Nortel Networks. Symantec and the Symantec Logo are trademarks or
registered trademarks of Symantec Corporation or its affiliates in
the U.S. and other countries.

ots Originaltext: Nortel Networks
Im Internet recherchierbar: http://www.presseportal.de

Contact:
For further information: Christie Blake, +1-(978)-288-8439,
christbl@nortel.com; Cory Edwards, +1-(415)-738-2637,
cory_Edwards@symantec.com