Email Data Security
Jim Brashear General Counsel Zix Corporation Dallas Email 60% Instant Messenger 9% Telephone 23% Social Media 8%Business Uses Email…
The dominant business communication tool
• Time spent on email exceeds time spent on all other communication tools combined*
• “The continuing increase in the adoption of email authentication is laying a foundation for email to … remain the world’s dominant form of online communication**
* Osterman Research (based on time spent on communication tools during an eight-hour day) ** Craig Spiezle, President and Executive Director, Online Trust Alliance
The Good Old Days
Insiders
Phishing and
Spear Phishing
Rogue Cloud
Data
Data
Data
Data
Data
Data
How email seems to work
Company Network Company Network Router Router DLP Router Router AS/AV
How email actually works
The Cloud
Email = Cloud Data
“Email sent in the ‘default’ manner over the Internet
is inherently insecure.”
Benefits of Secure Email: • Integrity • Confidentiality • Privacy • Authenticity • Proof of receipt • Nonrepudiation
“Now is the time to get serious about your email system.”
Data Intercepts Happen
Email Intercepted
•
Government monitoring
•
Gmail, Hotmail and Yahoo!
accounts targeted by hackers
• China’s Gmail diversion
Man-in-the-Middle
• Bank's unencrypted email: $1.2M theft • Typosquatting
• SSL Spoofing
• Courts in The Netherlands advised lawyers to stop using email • Several SSL Certificate Authorities hacked
Reasonable Expectation of Privacy?
What Are Attackers After?
• Proprietary Information
– Cybercriminals: corporate trade secrets
– Nation-state hackers: military and defense intellectual property, designs and plans
• Personal Financial Data • Political change
• Embarrassment • Information Freedom
Business Impacts of Cyber Attack
• Loss of IP, confidential information • Privacy data breach
• Business disruption
• Forensics, containment, recovery, remediation
• Regulatory investigation
• Violations, Increased compliance costs
• Contract breaches
• Consumer lawsuits
• Adverse publicity, brand damage • Loss of customer trust
• Revenue impact • Share price decline
• Shareholder derivative suits • Fines
• Impact on insurance
Who are Targets?
• Individuals
• Governments
• Universities
• Businesses
• Outside directors
– Board portals• Services providers
– Outsourcers– Data security firms – Professionals
Attacking Law Firms
•
ALAS: Hacker threats are not hypothetical
•
Law firms are soft targets
– Treasure trove of confidential client information – Consultants, vendors, business partners and
employees may have relatively weak data security
Spying by N.S.A. Ally Entangled U.S. Law Firm
By JAMES RISEN and LAURA POITRAS FEB. 15, 2014
The list of those caught up in the global surveillance net cast by the National Security Agency and its overseas partners, from social media users to foreign heads of state, now includes another entry: American lawyers.
Slide 21
Cyber Security Ethics
2014 ABA Resolution
“
Encourages all private and public sector
organizations to develop, implement and
maintain an appropriate [cyber] security
program
.” An organization-wide security program is comprised of a series of activities, including:
– governance by boards of directors and senior executives; – development of security strategies and plans, policies and
procedures;
– creation of inventories of digital assets; – selection of security controls;
– determination of technical configuration settings; – performance of annual audits; and
Ethics: Competence
Rule 1.1
A lawyer shall provide competent representation to a client
A lawyer should keep abreast of the risks associated with
technology
Ethics: Client Confidences
Texas Rule 1.05
Lawyer shall not knowingly reveal confidential information of a client or former client
Unless the client
Ethics: Client Confidences
New Model Rule 1.6
A lawyer shall make reasonable efforts to prevent the inadvertent disclosure of, or unauthorized access to, information relating to the
representation of a client
Ethics: Confidentiality Competency
Comments to Model Rule 1.6
17. When transmitting a communication, lawyer must take reasonable
precautions to prevent the
information from coming into the hands of unintended recipients
Ethics: Client Property
Rule 1.15
Client property should be appropriately safeguarded
A lawyer should hold property of others with the care required of a professional fiduciary
Information
is property
Email Ethics: New Direction
Email Ethics: New Direction
Attorneys may use email but must, under
appropriate circumstances, take additional
precautions to assure client confidentiality
~ PA State Bar Formal Opinion 2011-200Professional Judgment
Email Ethics: New Direction
Obligation to warn client about
significant risk of email interception
~ ABA Formal Opinion 11-459 (August 4, 2011)
Duty to Protect the Confidentiality of Email Communications with One's Client
Slide 31
Encrypt
Channels
Devices
Content
• at rest
• in transit
E2EE: End-to-End Encryption
Everything
Channel Encryption
From the Experts: SSL Hacked!
Enterprise can't rely on encrypted communications anymore, but corporate counsel can champion a fix
Identity inquiry SSL certificate
Encryption Considerations
Client’s instructions Degree of sensitivity of the information Possible client impact from disclosure Data breach laws
Likelihood of disclosure Inherent level of security
Reasonable steps to increase security Cost of additional safeguards
Urgency of the situation
Legal ramifications of unauthorized interception, access or use
When to Encrypt
Mandatory Data Protection
• Law or regulations require encryption
– E.g., Massachusetts rules for personal information • Safe harbor from data breach requirements for encrypted
data
Highly Sensitive Information
• Should not send highly sensitive client communications via unencrypted methods
Heightened Risk of Interception
• Should not use unencrypted methods where there is a particularly high risk that it may be accessed by unauthorized third parties