Evidence-Based Risk Management

transcript

Wade Baker, Verizon RISK Team

My favorite (professional) topics

• Security incidents (as in studying them – not experiencing them) • Information sharing (specifically incident-related info) • Data analysis (how else will we learn?) • Risk management (but not the ‘yellow x red = orange’ kind)

Data Breach Investigations Report (DBIR) series

An ongoing study into the world of cybercrime that

analyzes forensic evidence to uncover how sensitive data is

stolen from organizations, who’s doing it, why they’re

doing it, and, of course, what might be done to prevent it.

2012 DBIR Contributors

Methodology: Data Collection and Analysis

VERIS: https://verisframework.wiki.zoho.com/

• DBIR participants use the Verizon Enterprise Risk and Incident Sharing (VERIS) framework to collect and share data.

• Enables case data to be shared anonymously to RISK Team for analysis

VERIS is a (open and free) set of metrics designed to provide a common language for describing security incidents (or threats) in a structured and repeatable manner.

Sharing incident information

TACTICAL

What point solutions should I implement now?

STRATEGIC

How do I measure & manage risk over time?

Unpacking the 2012 DBIR An overview of our results and analysis

Sample characteristics

• 855 incidents of confirmed data compromise • 174 million stolen data records • All varieties of data included (CC#s, PII, IP, etc) • Victims of all industries, sizes, geographic regions • Cases worked by Verizon, investigated by law enforcement, or reported to (Irish) CERT

Threat Agents

Threat Agents: Larger Orgs

Threat Agents: IP & classified data

External Internal Partner

Threat Agents: External

Threat Actions

Threat Actions: Larger Orgs

Threat Actions: IP & classified data

Malware

Hacking

Social

Misuse

Physical

Environmental

Top Threat Actions

Top Threat Actions: Larger Orgs

Top Threat Action Types: IP & classified data

Most Compromised Assets

Asset Ownership, Hosting, and Management

Compromised Data

Smaller Orgs

Attack Difficulty

Attack Targeting

The 3-Day Workweek

Timespan of events

Timespan of events: Larger Orgs

Timespan: IP & classified data

Minutes Hours Days Weeks Months Years POE to Comp 10% 65% 10% 10% 3% 3% Comp to Disc 0% 18% 21% 13% 7% 41% Disc to Cont 0% 0% 16% 13% 71% 0%

Breach Discovery

Recommendations: Larger Orgs

Evidence-Base Risk Management What is it, and what does it look like?

What is EBRM?

EBRM aims to apply the best available evidence gained from empirical research to

measure and manage information risk.

Measuring and managing information risk

To properly manage risk, we must measure it.

To properly measure risk, we must understand our information assets, the threats that can harm

them, the impact of such events, and the controls

that offer protection.

A threat event that is measurable (and thus manageable) identifies the following 4 A�s:

Agent: Whose actions affected the asset Action: What actions affected the asset Asset: Which assets were affected Attribute: How the asset was affected

evidence?

Data Breach Investigations Report (DBIR) series

= evidence for measuring and managing risk

Diagnose Ailments

✔ Treatment strategy

✔Policy ✔People ✔Process ✔Technology

Evidence-Based Risk Management

What are the benefits of EBRM?

• Metrics –  Builds outcome-based metrics around security processes and failures in order to

get a better read on the security pulse of the organization.

• Remediation –  Strengthen security posture by identifying gaps, pinpointing the most critical

remediation strategies, and focusing longer-term strategic planning.

• Efficiency –  Enable better and more justified decision-making, improve resource allocation,

reduce unproductive security spending, and generally achieve “more bang for the buck.”

• Communication –  Increase information flows across organizational and functional boundaries.

Create and communicate ongoing performance measures to key stakeholders.

DBIR: www.verizon.com/enterprise/databreach VERIS: https://verisframework.wiki.zoho.com/ Blog: http://www.verizon.com/enterprise/securityblog Email: dbir@verizon.com