Cisco CloudCenter: Get the Hybrid IT Advantage

Image Spam

Definition - What does Image Spam mean?

Image spam is a type of spam, or rather, a spamming technique, in which a spam message is delivered in the form of an image. This is done in an attempt to circumvent spam filters that scan for particular keywords. This works because a user can read an image, whereas many anti-spam systems cannot.

Techopedia explains Image Spam

There are two ways to look at filtering image spam. First, anti-spam systems can be improved to have better image recognition. While many spam filtering systems have this ability, accurate character recognition is difficult.

As opposed to trying to "read the image," there are various other spam detection methods, such as honeypots, message header analysis or human reporting mechanisms that can help in detection. Additionally, there are many anti-spam systems that use a combination of whitelists, blacklists and so-called gray lists that force authorized clients to re-send messages.

Given all these techniques, image spam is no longer the issue it once was. Initially, there was a flood of spam, but as systems have adapted, it is now more of a footnote to the never-ending battle of spam prevention.

Share this:

Connect with us

Email Newsletter

Join thousands of others with our weekly newsletter

The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.