Solutions for privacy, disclosure and encryption

Trend Micro Data Protection

Solutions for privacy, disclosure and encryption

A Trend Micro White Paper

TREND MICRO DATA PROTECTION SOLUTIONS FOR PRIVACY, DISCLOSURE, AND ENCRYPTION

1 White Paper | Solutions for Privacy, Disclosure, and Encryption

I. INTRODUCTION

Enterprises are faced with addressing several common compliance requirements across multiple geographies and industries. These include protecting confidential data in common usage scenarios, notifying relevant parties when this data is disclosed, and securing this information with data loss prevention and encryption technologies. Factorssuch as finding accurate, usable, and cost-effective solutions to meet these requirementscan make the difference between achieving compliance goals and leaving the organization vulnerable to data loss and non-compliance. Trend Micro Data Protection solutions for data loss prevention (DLP) and email encryption are designed to help organizations meet their compliance requirements easily and cost-effectively.

II. PRIVACY, DISCLOSURE, AND ENCRYPTION

In simple terms, compliance is the adherence to an accepted policy or set of requirements. In terms of meeting global compliance requirements, compliance means protecting confidential data and establishing controls to ensure that requirements are met on an ongoing basis. For more information about the regulatory landscape and specific requirements, please see Regulatory Compliance Global Privacy, Disclosure and Encryption Issues, a Trend Micro white paper.

Confidential Data Types Description

PII: Personality Identifiable Information Social security number/national identification number, drivers license number, address, phone number

PCI: Payment Card Industry Credit card numbers, Card Verification Value (CVV), expiration date

PHI: Protected Health Information Medical diagnosis codes, disease names, medication names, patient names

PFI: Personal Financial Information Financial account number, credit score

Figure 1: Protected data types and data requirements

PRIVACY REQUIREMENTS Safeguarding the privacy of an individuals personal, medical, and financial data is of utmost concern to enterprises, especially when it comes to regulatory compliance. Regulations that have been put in place to protect individuals privacy usually require that data associated with that individual not be visible or accessible to unauthorized users. While requirements for HIPAA Privacy and Security Rules tend to be more vague on implementation details, subsequent and related guidelinessuch as NIST 800-66 and the HITECH Acthave stepped in to provide more implementation guidance for enforcing privacy. Monitoring systems for sensitive content can help enforce privacy. If sensitive content is detected, enterprises may choose how to react, whether to report it, block the possible breach, or encrypt the data.

DISCLOSURE REQUIREMENTS While privacy is the goal, preventative controls are not airtight and data breaches may still occur. Regulators strive to minimize the risk of data breaches by requiring that interested partiessuch as the individual impacted by the breachbe notified. For example, the California SB 1386 law requires breach disclosure of



data belonging to a resident of California whose unencrypted personal information was, or is reasonably believed to have been, acquired by an unauthorized person. To address these notification requirements, enterprises must first be able to detect data breaches through regular monitoring of systems that handle confidential data. A recent Massachusetts law (201 CMR 17.00) validates this approach with its requirement for encryption and reasonable monitoring of systems, for unauthorized use of or access to personal information.

ENCRYPTION REQUIREMENTS Regulators are increasingly calling out encryption as a specific technology required for securing confidential data. In some cases, encryption technology is also accepted as a compensating control for when data breaches cannot be prevented, allowing organizations to avoid costly breach disclosure requirements (exemption provisions). For common business processes such as email, DLP can be used to block unauthorized data transmissions, while encryption can enforce the privacy of communications between business entities and individualsboth for legitimate communications and accidental disclosure. Encryption of confidential data sent via email is mandated by many regulations, while others strongly encourage encryption as a means for avoiding breach disclosure requirements.

Direct mandates. PCI DSS mandates encryption of credit card data where it is transmitted (PCI DSS Req. 4) and stored (PCI DSS Req. 3). Similarly, US States including Nevada (NRS 597.970) and Massachusetts (201 CMR 17.00), require encryption of transmitted data for personal records.

Exemption. The HITECH Act (US, Healthcare) states encryption as the technology that can secure PHI, or render ePHI unusable, unreadable, or indecipherable to unauthorized individuals such that breach notification is not required.

III. IDENTIFYING SUSTAINABLE COMPLIANCE SOLUTIONS

A good place to begin an effective compliance strategy is by following a risk-based approach to implementing and auditing IT controls. In practice, this means focusing on business systems where confidential data is likely to be handled (such as email and end user systems) and on network storage locations (such as databases and file servers). This also means focusing on employeesor insiderswho routinely download, create, paste, copy to USB, or attach sensitive data to their emails sent to internal and external users. Once these target systems and users have been identified, it is essential to educate these individuals on important practicessuch as acceptable use of this confidential data, document official and ad-hoc processes, and automate controls through proven products. In fact, these areas of focus are known as the three Ps of an effective compliance strategypeople, processes, and products.

Security products are necessary to safeguard confidential data, which is increasingly available in electronic format and handled through the aforementioned business systems. The healthcare industry in particular is poised to see drastic increases in confidential data records due to the recent HITECH Act of 2009, which reinforces the mandate for Electronic Medical/Health Records (EMR / EHR) by 2014.

Applying encryption and DLP solutions to high-risk systems is a strong start, but it is certainly not the entire solution. Applying a single set of controls to users, data, and systems will not work for most organizations.



These challenges are further complicated by the variety of rules highlighted across global regulations and enterprise security policies. Policy-based solutions are necessary to:

Monitor different data types such as PII, PHI, PFI, and PCI

Monitor different user activity such as email, web, instant messaging; copy/paste, printing, copy files to USB/CD/DVD from end-user applications. These channels or protection points often fall into three classes of dataor data modalities. They are Data in Motion (DIM), Data in Use (DIU), and Data at Rest (DAR)

Monitor different types of users, to determine their authorization to handle these data types

Enforce different controls, such as audit, block, quarantine, or encrypt

Securing the sheer volume of enterprise dataespecially given the distributed nature of confidential datacan present significant operational challenges. This is why solutions that protect privacy, prevent breaches, and encrypt email communications must be:

Accurate in their ability to detect confidential data across email, end-user systems, and network storage systems

Usable so that both administrators and users can easily implement and use the solution

Cost-effective through integration with existing infrastructure and low overhead from previous generation solutions

ACCURACY IS CRITICAL The ability to detect confidential data is the core element of many regulations. Discovery and monitoring functions must accurately detect content, while at the same time ensuring high catch rates and low false negatives (where the system fails to recognize sensitive data). Enterprises need to be able to identify confidential data without blocking legitimate business processes, such as emails to business partners. The optimal solution must also be intelligent enough to detect portions of restricted content in an otherwise approved action. For example, users often copy and paste regulated contentsuch as a persons name, address, or social security numberinto emails or USB devices. Compliance solutions should be able to detect and block these actions while allowing the legitimate copy of non-confidential data to devices.

USABILITY IS KEY TO ACHIEVING DESIRED RESULTS Compliance solutions will not be effective if they are too difficult to use, deploy, or manage. If these solutions are not easy to use, there is a high probability that they will:

Not be used and therefore leave the organization vulnerable

Be used incorrectly, placing the organization in danger of violation

Be used inefficiently, requiring too much time or too many resources to manage, thereby increasing total cost of ownership beyond the solutions value

With email encryption, for example, requiring senders and recipients to use a complicated key management process can hamper routine business processes and cause undesirable escalations to senior management. According to the IDC Encryption Usage Survey (August 2008, IDC #213646), approximately 70 percent of organizations say that cost/expense are critical to a choice of encryption product, and almost 80 percent agree that ease of use is also critical.



Another challenge for encryption is making the determination of which data is confidential and which is not. It is unrealistic to expect users to make this determination in the course of conducting business, increasing the likelihood of compliance violations. To increase compliance and avoid the loss of confidential data, the compliance solution should automatically detect and encrypt confidential data prior to leaving the network perimeter.

COST EFFECTIVENESS RESULTS FROM EFFICIENCY Data protection solutions that integrate with existing infrastructure can help reduce the costs associated with provisioning new data protection technologies. For example, because most enterprises already have already deployed an email antispam and antivirus solution, adding a compatible email encryption solution can avoid unnecessary hardware costs and improve application performance. This increases efficiencies of scale, since detection and encryption of confidential data are occurring in a single, seamless workflow.

For cumbersome processes like encryption key management, a compliance solution that provides key management as a hosted service may be more cost-effective than an on-premise solution. This approach can be provisioned as needed and does not require the same investment in hardware and IT resources for deployment and management.

IV. THE TREND MICRO ADVANTAGE

Training employees and adapting processes are essential elements of a compliance strategy. Success, however, also depends on implementing proven, policy-based endpoint or network data loss prevention (DLP) and email encryption solutionswhile also ensuring that they are accurate, usable, and cost-effective. Trend Micro delivers solutions that are optimized to address compliance and more, by helping to protect users and confidential data from the growing threat of web-based attackssuch as viruses, malware, and malicious techniques used to steal data. Trend Micro solutions provide layered security, whether at the gateway or endpoint, and are powered by the Trend Micro Smart Protection Networka next-generation, cloud-client content security infrastructure helps detect and contain threats before they reach the business.

Business Need Trend Micro Solution

Educate employees on proper data usage policies, with real-time alerts Trend Micro Data Loss Prevention

Protect confidential data from misuse by authorized insiders, whether accidental or malicious

Trend Micro Email Encryption Trend Micro Data Loss Prevention

Protect sensitive data, whether in use, at rest or in motion across both endpoint and gateway layers

Trend Micro Data Loss Prevention Trend Micro Email Encryption

Figure 2: Trend Micro Data Protection Solutions



Business Need Trend Micro Solution

Protect datacenter servers from attack, regardless of whether they are physical or virtual

Trend Micro Deep Security

Continuously monitor for active, data-stealing malware infections and receive early warning notifications of malware outbreaks

Trend Micro Threat Management Services

Protect user endpoints with antivirus, anti-malware, anti-spyware, personal firewall, and host intrusion prevention system

Trend Micro OfficeScan Trend Micro Endpoint Security Platform Trend Micro Threat Management

Services

Trend Micro Deep Security

Provide messaging, web, and endpoint security; Protection against inappropriate content, spam and phishing, spyware, rootkits, bots, viruses and trojans, web threats, worms, and network attacks

Trend Micro Enterprise Security Suite Trend Micro ScanMail for

Exchange/Domino

Trend Micro InterScan Web/Messaging Security

Figure 3: Trend Micro Data Protection Solutions Extended

TREND MICRO DATA LOSS PREVENTION Data loss prevention (DLP) solutions are designed to protect sensitive information such as customer, employee, and patient data as well as intellectual property. This is generally accomplished by monitoring and preventing information leaks across multiple threat vectors, including email, webmail, instant messaging, USB drives, and CD/DVDs. However, many solutions that are designed to monitor and block sensitive data have shortcomings. Less than ideal solutions will:

Scan data at endpoints too slowly

Handle a limited number of documents

Fail to detect data in multiple languages

Do not support partial data matching

Cannot identify and protect sensitive data when users are offline

Trend Micro Data Loss Prevention prevents data loss with a unique approach that combines endpoint-based policy enforcement with highly accurate DataDNA fingerprinting and content matching technology. Trend Micro DLP includes pre-configured templates and validation modules for privacy data, such as those defined by PII, PHI, and PCI regulations. These features help to simplify the process of detection and enforcement for IT administrators. The fingerprinting technology supports full or partial matches using a language-independent technology, with ultra-small, locally-stored signatures that enable policy enforcement for endpointswhether they are on or off the network.



It is important to secure protection points that cover three data modalities:

Data at Rest. The Trend Micro solution scans endpoints and file systems for confidential data, giving enterprises visibility into where their confidential data is being stored and accessed.

Data in Use. Trend Micro DLP also monitors data in use across numerous communications channels such as USB-based removable storage, CDs, DVDs, and printers.

Data in Motion. Trend Micro DLP provides protection for channels that include email, webmail, instant messaging, and FTP.

These protection points can be enabled at the endpoint or network and can include the following actions: log, warn user, capture forensic data, require user justification, or block. This helps to improve compliance over time, as users are educated at the point of the violationa pop-up screen explains the organizations policy and prompts for justification of the prohibited action.

While implementing controls is part of the compliance challenge, validating these controls against the data protection policy plays an even bigger role: its core to the audit process. Compliance audits, such as those required by PCI DSS, require tamper-proof activity logs to prove that controls are in place and are effective for protecting confidential data. Trend Micro DLP provides these logs, as well as compliance reports that highlight violations and the confidential data that was detected. This helps to greatly mitigate risk over time.

TREND MICRO EMAIL ENCRYPTION Email encryption solutions enable organizations to enforce compliance requirements and to ensure that confidential information is delivered securely. However, using traditional encryption solutions to protect email and attachments from unwanted eavesdropping, tampering, and spoofing is often complexplacing additional burdens on IT management.

Trend Micro Email Encryption solutions are easy to use within an existing email infrastructure. They provide universal reach by allowing organizations to deliver private email to any recipient without burdensome recipient pre-registration or certificate management of Public Key Infrastructure (PKI) technology. Encrypted content is simply pushed from senders to recipients like any other email. While the solution is offered in both hosted and on-premise versions, hosted encryption goes further in maintaining public keys, securing private keys, and managing certificate revocation lists on behalf of customers. The Trend Micro hosted service enables even small or medium-sized businesses to cost-effectively address encryption requirements.

Trend Micro also addresses usability and accuracy concerns by removing the dependence on end users to enforce the encryption of their confidential emails. Policy-based email encryption automatically encrypts and decrypts emails based on administrator-defined policiesusing content filtering capabilities from a messaging security gateway solution, such as Trend Micro Hosted Email Security.

To support audit requirements, Trend Micro Email Encryption also provides tamper-proof activity logs and compliance reports that highlight violations and any detected confidential data.



V. TRUST A SECURITY INDUSTRY LEADER

Trend Micro data protection solutions address privacy, breach disclosure, and encryption requirements with Email Encryption and Data Loss Prevention solutions. These solutions address common IT compliance challenges with accuracy, usability, and cost-effectiveness. As a global leader in Internet content security, Trend Micro focuses on securing the exchange of digital information. Based on extensive content security expertise, Trend Micro correlates threat data from an average of more than 5 billion dynamically rated websites, spam sources, and files every day. Thousands of companies continue to trust their data protection to Trend Microa company with 20 years of experience dedicated to content security and expertise based on a history of innovation.

To learn more about Trend Micro solutions for addressing regulatory compliance, contact your Trend Micro representative or visit www.trendmicro.com.

2010 Trend Micro, Incorporated. All rights reserved. Trend Micro and the t-ball logo are trademarks or registered trademarks of Trend Micro, Incorporated. All other product or company names may be trademarks or registered trademarks of their owners. Information contained in this document is subject to change without notice. WP01_DLP-compliance_100224US

Solutions for privacy, disclosure and encryption

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