Investor PresentationNovember 2015

Forward Looking Statements

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This presentation contains statements regarding the pending sale of our information management business to The Carlyle Group, which may be considered forward-looking within the meaning of the U.S. federal securities laws, including statements regarding the expected benefits to be realized as a result of the sale; statements with respect to our anticipated proceeds from the sale and our expected use of such proceeds; statements regarding the growth prospects of our security business; statements with respect to our continuation of our current dividend; product development plans; and statements with respect to the proposed timing of the closing of the sale. These statements are subject to known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to differ materially from results expressed or implied in this press release. Such risk factors include those related to: receiving all regulatory approvals, satisfying all closing conditions and consummating the pending transaction; separation of the company into the security business and the information management business; general economic conditions; maintaining customer and partner relationships; fluctuations in tax rates and currency exchange rates; the timing and market acceptance of new product releases and upgrades; the successful development of new products, and the degree to which these products and businesses gain market acceptance. Actual results may differ materially from those contained in the forward-looking statements in this press release. We assume no obligation, and do not intend, to update these forward-looking statements as a result of future events or developments. Additional information concerning these and other risks factors is contained in the Risk Factors section of our Form 10-K for the year ended April 3, 2015.

Any information regarding pre-release of Symantec offerings, future updates or other planned modifications is subject to ongoing evaluation by Symantec and therefore subject to change. This information is provided without warranty of any kind, express or implied. Customers who purchase Symantec offerings should make their purchase decision based upon features that are currently available.

We assume no obligation to update any forward looking information contained in this presentation‐ .

Use of GAAP and Non-GAAP Financial Information

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Our results of operations have undergone significant change due to the impact of litigation accruals, stock-based compensation, restructuring, transition and separation matters, charges related to the amortization of intangible assets, and certain other income and expense items that management considers unrelated to the Company’s core operations. To help our readers understand our past financial performance and our future results, we supplement the financial results that we provide in accordance with generally accepted accounting principles, or GAAP, with non-GAAP financial measures. The method we use to produce non-GAAP results is not computed according to GAAP and may differ from the methods used by other companies. Non-GAAP financial measures are supplemental, should not be considered a substitute for financial information presented in accordance with GAAP and should be read only in conjunction with our consolidated financial statements prepared in accordance with GAAP.

Our management team uses these non-GAAP financial measures in assessing the Company’s operating results, as well as when planning, forecasting and analyzing future periods. Investors are encouraged to review the reconciliation of our non-GAAP financial measures to the comparable GAAP results, which is attached to our quarterly earnings release and which can be found, along with other financial information, on the investor relations page of our website at: www.symantec.com/invest.

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As the global leader in cybersecurity, we operate one of the world’s largest cyber intelligence networks, we see more threats, and protect more customers from the next generation of attacks. We help companies, governments and individuals secure their most important data wherever it lives.

Highlights

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2Q16% Y/Y

Growth (CC)

Revenue ($ millions) $1,498 -1%

Deferred Revenue ($ millions) $3,271 0%

Non-GAAP Operating Margin1 28.1% 50 bps

Non-GAAP EPS1 44¢ NA

• In October, achieved operational separation of Veritas and remain on track to close the transaction by the end of the fiscal third quarter

• Board of Directors has authorized the company to pursue a $500 million Accelerated Share Repurchase to be executed as soon as possible

• Enterprise Security revenue grew 1% year-over-year in CC, the second consecutive quarter of year-over-year growth

• DLP products grew 37% year-over-year in CC

• Introduced Symantec Advanced Threat Protection (ATP), the first solution that can detect and remediate advanced threats across control points, from a single console with just a click, all with no new endpoint agents to deploy

1 Non-GAAP financial measure. See www.symantec.com/invest for a reconciliation to the applicable GAAP financial measure

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Focused on Four Priorities

Efficiently Allocate Capital

Improving our Cost Structure

Building our Enterprise Security Sales Pipeline/GTM

Realizing our Unified Security Strategy

Unified Security Strategy

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Threat ProtectionENDPOINTS DATA CENTER GATEWAYS

• Advanced Threat Protection Across All Control Points• Built-In Forensics and Remediation Within Each Control Point• Integrated Protection of Server Workloads: On-Premise, Virtual, and Cloud• Cloud-based Management for Endpoints, Datacenter, and Gateways

Unified Security Analytics Platform

Log andTelemetryCollection

Unified IncidentManagement and Customer Hub

Inline Integrationsfor Closed-loopActionable Intelligence

Regional and Industry Benchmarking

Integrated Threatand BehavioralAnalysis

Information ProtectionDATA IDENTITIES

• Integrated Data and Identity Protection• Cloud Security Broker for Cloud and Mobile Apps• User and Behavioral Analytics• Cloud-based Encryption and Key Management

Users

Data

Apps

Cloud

Endpoints

Gateways

Data Center

Cyber Security ServicesMonitoring, Incident Response, Simulation, Adversary Threat Intelligence

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• FY15 Revenue1: $2.1 billion• FY15 Operating Margin1: 14%

• Unified security analytics platform monetization

• Growth from cloud and mobile offerings

Improving Revenue Outlook with Outstanding Margin

CONSUMER SECURITY

• FY15 Revenue1: $1.9 billion• FY15 Operating Margin1: 53%

• Premium support services

• Customer experience improvements

• Leverage consumer mobile

ENTERPRISE SECURITY

Accelerating Growth and Margin Expansion

1 FY2015 Non-GAAP metrics

Symantec: World’s Largest Security Business

Symantec Security Strategy Leverages Unique Assets

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• Consumer

– Norton Security

• Enterprise

– Symantec Threat Protection

– Symantec Information Protection

We see more, analyze more, and therefore protectfrom more cyber threats than any other company in the world

Best-in-ClassSecurity Products

Our Competitive Advantage: Global Scale & Real-Time Visibility

Cyber Security Services

Unified Security Analytics Platform

• Security Big Data Analytics

• Unparalleled scope of telemetry (Symantec and 3rd Party)

• Unrivaled visibility into real-time global threats

• Powers Symantec and 3rd party security analytics applications

• Full-suite of services

– Monitoring services

– Incident response services

– Threat intelligence services

• Supported by 500+ world-class cyber security experts and9 global threat centers

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Scale & Scope of Enterprise Security Franchises Underpin Growth

#1 share; AAA ratingnine quarters in a row

Endpoint Security

#1 email share; 100% availability with <0.0003% FPs

Email and Web Security

#1 DLP share100% of Fortune 100

Data Protection

#1 share6B certificate lookups/day

SSLCertificates

13B validations every day100% uptime last 5 years

Authentication & Authorization

ManagedSecurity Services5 global SOCs30B logs analyzed/day

Source: IDC, Gartner, Symantec.

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Drivers to Accelerate Growth & Unlock Value for FY16-17

Security

Increase in NEW security offerings in FY16 3 new ATP offerings 2 new Cyber Security services2 new Security Analytics applications

Norton subscription traction

CISO

40% increase for enterprise security quota carrying reps

Shifting & increasing R&D to growth markets

10% CAGR in addressable security market

1,750 dedicated security sales professionals

Continued Commitment to a Balanced Capital Allocation

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Capital Allocation Strategy

• Received board authorization to accelerate the return of $2 billion to shareholders, beginning with a $500 million accelerated share repurchase

• In August, Board authorized increase of stock buyback program to $2.6B

• Retaining $0.60 / share dividend per year, significantly increasing Symantec’s dividend payout ratio post separation

• Expect to return ~120% of after-tax domestic cash sale proceeds through dividends and stock buybacks over the 18 months post closing

• Committed to strong balance sheet and investment grade rating

• Continue to evaluate alternatives for cash usage ranging from M&A to returning additional cash to shareholders

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FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15

$3,600$2,800

$1,500

$700 $553

$870 $893 $826 $918 $913

Returned more than $10 billion to shareholders in the past ten years

Share buyback

Dividend

($ in millions)

Demonstrated Track Record of Capital Return

Historical Cash Deployment

Sale of Veritas to The Carlyle Group

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Transaction Overview

• $8 billion all cash transaction, with approximately net proceeds of $6.3 billion

• Attractive and certain value generation for Symantec shareholders

• Allows Symantec to grow its security business and increase its lead as the world’s largest cybersecurity company

• Provides Symantec with capital to continue investments in the rapidly growing market for security products and services, and to support its capital return initiatives through the purchase of common stock and its dividend

• Expected closing by end of Q3 FY16 (subject to certain closing conditions and regulatory approvals)

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Contact Investor RelationsJonathan Doros(650) 527-5523Jonathan_Doros@symantec.com