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Securing Email: Comprehensive Messaging Security. Kip Trout, Proofpoint Regional Sales Manager. Agenda. What is Messaging Security? Major Spam Trends Outbound Content Security & Compliance The Proofpoint Solution. Outbound Threats Followed. Inbound Threats Came First. Spam.

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securing email comprehensive messaging security

Securing Email: Comprehensive Messaging Security

Kip Trout, Proofpoint

Regional Sales Manager

agenda
Agenda
  • What is Messaging Security?
  • Major Spam Trends
  • Outbound Content Security & Compliance
  • The Proofpoint Solution

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what is messaging security

Outbound Threats Followed

Inbound Threats Came First

Spam

Corporate governance

Viruses

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Phishing

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Denial of service

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Security, privacy and compliance

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Botnets

Intellectual property

Directory harvest

What is Messaging Security?

Security threats have always been a problem to enterprises

Enterprise

SMTP, HTTP, IM and FTP services

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3 major trends
3 Major Trends
  • Rise in spam volumes
  • Rise of botnets
  • Rise of image- based spam
  • End users believe effectiveness has declined
  • Shorter, more intense, spam attacks
  • Spam circumvents filters, drops true effectiveness

Spam continues to be a problem facing organizations

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spam volume continues to increase
Spam Volume Continues to Increase
  • Continued increase
    • Average spam volume

> 3-4x in 12 months

  • Why?
    • Business is expanding
    • Spam is increasing
  • What can you do?
    • Best spam protection
    • Capacity planning

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why effectiveness matters
Why Effectiveness Matters

2004Now

Volume (msg/day) 500 Thousand 2 Million 2 Million

Effectiveness 94% 95%99%

Spam getting through 30,000 100,000 20,000

# Users 20,000 25,000 25,000

Spam/User 1.5 spams 4 spams 0.8 spams

Better effectiveness = less spam in users’ Inbox = fewer Help Desk calls

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spam attacks in the old days

(Launch Spam Attack

“Buy Viagra”)

Company

University

Hospital

Bad Guy

Bad Guy

At Time = 0

At Time = 0

(Launch Spam Attack)

At Time = 0

Spam Attacks in the Old Days
spam attacks today botnets

IRC Server

Bad Guy

Organization

Spam Attacks Today: Botnets

(Sends Instructions)

(Listen for Instructions)

(Receive Instructions)

(Launch Image Spam Attack)

embedded images often randomized

7181 122413e0682085f68c2b947a53af02cc

7181 28de627c92a20b1043deebfa5f7715f8

7181 6280188bd69ab41fd9764df2a10978f5

7181 6e8a670f65570b1daf52dd3ae10c3a4c

7181 e3bdd4b0073a502544df4f07647764db

Embedded Images, Often Randomized
  • Possible variants are endless– signatures are useless!
  • Proofpoint MLX includes
    • Image Fuzzy Matching
    • Web URL Reputation

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image fuzzy matching a
Image Fuzzy Matching A

Feature Description:

  • GIF80 and JPG80 algorithms
  • Effective against 3 image obfuscation techniques
    • Randomizations in unused Color Map entries (invisible)
    • Randomizations in bottom of image (appear as black lines)
    • Randomization in GIF Terminator (invisible)
  • Proofpoint algorithms correctly identify these randomizations

GIF Signature

Screen Descriptor

Global Color Map

Image Descriptor

Local Color Map

Raster (Image) Data

GIF Terminator

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image fuzzy matching b
Image Fuzzy Matching B

Feature Description:

  • Detects altered but similar images, even if alteration inside image
  • Effective against 2 obfuscation techniques:
    • Images with randomized (pixilated) borders
    • Images with randomized pixels throughout image
  • Proofpoint algorithms correctly identify these obfuscations

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ocr resistant animated gif
OCR Resistant Animated GIF

Viewable image contains “pump and dump” spam...

… but in slow motion…

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ocr resistant animated gif1
OCR Resistant Animated GIF

Note that this is a transparent GIF, but only the parts required to complete the image are transparent!

Frame 1 contains broken text

Frame 2 (transparent GIF) appears after 10ms completing the image

Both images contain broken text – OCR Resistant!

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what is the double tax on spam effectiveness
What Is the Double Tax on Spam Effectiveness?
  • Tax #1– Increased volume = perceived drop
    • Perceived drop in effectiveness
    • Volumes of spam result in higher spams in inbox
    • End Users phone helpdesk
  • Tax #2 – Sophistication = true drop
    • True effectiveness decline
    • Filters unable to handle image based spam
    • Exchange, Notes, Groupwise servers are also taxed
    • End Users phone helpdesk

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why are some solutions failing
Why Are Some Solutions Failing?

“Static” technologies

  • Relying on exact matches of spam senders and content
  • New spam is dynamic in nature – IPs, images, content
  • Permutations are endless!
  • Reputation
    • Examples: Competitor’s “global reputation based” solutions
    • How: Match sending IP addresses and rules
    • Problem: Image-based spam comes from botnets, with rotating IPs.
  • Signature
    • Examples: Large providers of signature based solutions
    • How: Match copy of email (or partial copy) against database
    • Problem: Image-based spam’s random images & text; endless permutations

Proofpoint’s MLX technology is dynamic and well-suited to the dynamic nature of spam

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2007 proofpoint forrester survey
2007 Proofpoint-Forrester Survey
  • Nearly 33% of companies employ staff to read outbound email.
  • More than 25% of companies terminated employees for violating email policies.
  • 56% say it is “important” or “very important” to reduce the risks of outbound email.
  • Companies estimate nearly 1 in 5 emails contains content that poses a legal, financial or regulatory risk.

Read the Proofpoint-Forrester Research report: www.proofpoint.com/outbound

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recent incidents
Recent Incidents
  • Dec 2006: Texas Woman\'s University emails names, addresses and SSNs of 15,000 TWU students over a non-secure connection
  • Nov 2006: University of Virginia Student Financial Services sent e-mail messages to students containing 632 other students\' Social Security numbers
  • Oct 2006: Bowling Green Police Dept. website has personal information on nearly 200 people the police had contact with: names, Social Security, & driver\'s license numbers
  • Oct 2006: Republican National Committee inadvertently emailed a list of donors\' names, SSNs and races to a New York Sun reporter
  • Mar 2006: Google mistakenly posts internal ad projections
  • Mar 2006: Blue Cross Blue Shield says contractor took 27,000 social security numbers
  • Feb 2006: Slip-up spills beans on Dell notebooks

See a chronological list of security breaches at: www.privacyrights.org

Source: ZDNet, Bradenton, Boston.com

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why is this happening
Why is this Happening?

P(Data Loss) =

no. of channels x data availability

  • Email is everywhere
    • 70% of corporate data lives in email
  • File Servers
  • Desktops
  • Laptops
  • USB Thumb Drives
  • Email
    • biggest thru 2010*
  • Weblogs
  • HTTP (WebMail)
  • FTP
  • Instant Messaging
  • New Channels

* Source: Gartner #G00138425, 3/15/06

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what to do
What to Do
  • Define Policies
    • Document
    • Communicate
    • Train
  • Map Technology Solution to Requirements
    • Corporate governance content
    • Structured
    • Unstructured
    • Auto-Encrypted
    • Inbound as well as Outbound
  • It’s not just Email anymore
    • Webmail, Blogs, IM, FTP sites, too

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slide21

Proofpoint Solution

Proofpoint Attack Response Center

Network Content Sentry

Secure Messaging

Dynamic Reputation

Spam Detection

Virus Protection

Zero-Hour Anti-Virus

Regulatory Compliance

Digital Asset Security

Web-based Management Interface & Policy Engine

Smart Search

Hosted Service

Virtual Appliance

Appliance

Software

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over 1200 delighted customers
Over 1200 Delighted Customers
  • Please contact Proofpoint directly for customer references, case studies, and names of industry leaders using Proofpoint.
  • Kip Trout

Proofpoint Sales

314-481-1516 office

314-560-3226 cell

[email protected]

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learn more
Learn More
  • Free Forrester Research & Proofpoint Report: “Outbound Email and Content Security in Today’s Enterprise”
  • www.proofpoint.com/outbound
  • Free white paper on how MLX technology fights image-based spam:
  • http://www.proofpoint.com/mlxwp

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download a trial version
Download a Trial Version

www.proofpoint.com/trial

Kip Trout [email protected] 314.481.1516

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