Porn filter on e-mail easily tricked

Content Technologies, a subsidiary of Ireland-based online security consultant Baltimore Technologies, on Friday acknowledged that there are ways around its PORNsweeper.

"If the image is messed with, PORNsweeper won't catch it," said Jonathan Tait, European product marketing manager for Content Technologies.

"PORNsweeper works with colour images. If you use image editing software to turn an image into a negative that will trick the software," Tait said.

PORNsweeper, which was launched in September, is server-based software that analyses images as they enter an e-mail system. System managers can set filtration rules to reflect company policy. PORNsweeper is an add-on module for Content Technologies' MAILsweeper.

The analysis includes scanning images for the colour of human skin in the pixels and screening these pixels to determine various statistics about the image, Tait said. Nude or pornographic images often contain more skin pixels than other images.

The software is sold as the ideal tool to protect organisations from "exposure to legal liability, damage to corporate identity, hostile working environments, abuse of resources and loss of productivity," according the company's promotion literature.

Recent events have shown that this is an issue for employers. Several companies, including mobile phone operator Orange and Dow Chemical, have fired staff for downloading lewd images and sharing those with colleagues.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Joris Evers

PC World

Comments

Comments are now closed.

Most Popular Reviews

Follow Us

Best Deals on GoodGearGuide

Shopping.com

Latest News Articles

Resources

GGG Evaluation Team

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell

LIFEBOOK UH574

The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi

STYLISTIC Q702

The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott

STYLISTIC Q702

My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?