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Terry Zink: Security Talk

Discussing Internet security in (mostly) plain English

Video: Hire the hackers!

I found this 18 minute video on Ted today.  Misha Glenny takes a look at hackers, who they are,...

Author: tzink Date: 09/13/2011

The most commonly used programming language is also the most vulnerable

Earlier this week, Tiobe Software released a report showing its Tiobe index: The TIOBE Programming...

Author: tzink Date: 09/13/2011

I was challenged in my response

Like many other people, I am not a fan of challenge/response filters.  If I ever get an email...

Author: tzink Date: 09/09/2011

Are compromised accounts getting better or worse?

I decided to take a look at the total amount of outbound spam incidents that we have discovered over...

Author: tzink Date: 09/08/2011

How to whitelist a sender for inbound mail

This post will contain some generic information about whitelisting, but also some specific...

Author: tzink Date: 09/07/2011

Browser market share–who’s visiting me?

An article on Geekwire today reports on Internet browser usage amongst the various population. ...

Author: tzink Date: 09/02/2011

The flip side of outbound spam control

Over the past few years, I have written numerous blog posts about controlling outbound spam. ...

Author: tzink Date: 08/31/2011

How Win32/FakeSysdef Corrupts Your Computer

Microsoft’s Trustworthy Computing group, which publishes the biannual Security Intelligence Report...

Author: tzink Date: 08/29/2011

What do phishers eat?

I was walking around town yesterday and swung into Ben & Jerry’s with a friend of mine, and saw...

Author: tzink Date: 08/29/2011

The new breed of spam

I came across the following spam message today.  It was sent through a compromised account, and...

Author: tzink Date: 08/26/2011

Spam is on the decline; what are the implications?

Previously, I wrote that the total amount of spam that we are seeing has seen a significant decline...

Author: tzink Date: 08/24/2011

Protecting yourself from spear phishing

One of the big trends this year is spear phishing.  These are phish attacks that are frequently...

Author: tzink Date: 08/22/2011

What is this Google+?

A few weeks back I voiced my reaction to Google+: Meh.  A commenter wrote that with 10 million...

Author: tzink Date: 08/16/2011

Spam continues to drop

Below is a chart that shows the amount of inbound mail that we see, both spam and non-spam, over the...

Author: tzink Date: 08/15/2011

Twitter’s real time abuse detection

Last week I mentioned that Twitter was going to introduce their own URL shortner,...

Author: tzink Date: 08/15/2011

The Great Firewall of China

One of the financial blogs I visit once in a while is Minyanville, where I can watch the...

Author: tzink Date: 08/12/2011

Would you block bit.ly if they cleaned up after themselves?

This post doesn’t have much to do with bit.ly but I want to continue my URL redirector meme and keep...

Author: tzink Date: 08/11/2011

Why silently dropping mail is a bad idea

As someone who is responsible for filtering mail, there are a number of options that we have when it...

Author: tzink Date: 08/09/2011

Should using bit.ly get you blocked?

About a month and a half ago, I wrote a post in response to another post that was written by another...

Author: tzink Date: 08/09/2011

Hotmail’s spam percentage declines significantly

I was reading an article on PC Mag today and he reviews Hotmail’s claims that it has made...

Author: tzink Date: 08/08/2011

Five years of blogging!

Five years ago today, I started this blog (and ~seven years ago I started fighting spam).  I’ve...

Author: tzink Date: 07/24/2011

New Netflix phishing scam

The following phishing scam from hackers crossed my screen the other day, below is a screenshot:...

Author: tzink Date: 07/21/2011

Mozilla to corporate users – F.O.A.D

Last month, I read Ed Bott’s article on ZDNet about Mozilla’s stance regarding its supporting of...

Author: tzink Date: 07/21/2011

Gmail’s new anti-phishing defense

A couple of weeks ago, Gmail released a new feature to boost its anti-phishing capabilities....

Author: tzink Date: 07/19/2011

Am I getting too old for this?

Here’s a weird story. Yesterday, I was driving back home after watching the latest Harry Potter...

Author: tzink Date: 07/18/2011

Phishing protection… what can you do for me?

One of the most common requests I get regarding anti-spam protection (from customers) is surrounding...

Author: tzink Date: 07/14/2011

My thoughts on Google+

From a friend who posted it on imgur:   And now from xkcd:   My own experience with...

Author: tzink Date: 07/13/2011

Taking down botnets is good / taking down botnets is bad

Did you ever get the feeling that whenever you read about security topics, you can get opposite...

Author: tzink Date: 07/08/2011

New botnet is indestructible / no botnet is indestructible

Computerworld posted a story this week about a new botnet, TDL-4, that is virtually...

Author: tzink Date: 07/08/2011

I frequently read publications like Bloomberg and Reuters and when I come across an article relating...

Author: tzink Date: 06/30/2011

No, using bit.ly does not get you blocked

Over at Word to the Wise, Steve Atkins has a good post on URL redirectors.  URL shorteners take...

Author: tzink Date: 06/28/2011

LulzSec calling it quits

Over the weekend, Internet hacking group LulzSec, responsible for breaking into such companies as...

Author: tzink Date: 06/28/2011

Handling the problem of outbound bulk mail

When it comes to email, I am our customers’ best friend.  I really am.  I’m the good guy...

Author: tzink Date: 06/22/2011

Handling the problem of inbound bulk mail

Over the years, our spam filtering has gotten to be pretty good.  We don’t see a lot of...

Author: tzink Date: 06/21/2011

New hacking technique

I have been gone for the past two weeks, first at MAAWG in San Francisco and then out on holidays...

Author: tzink Date: 06/20/2011

Clearing up some data on comparisons

I was reading Trend Micro’s blog the other day where they take aim at Microsoft’s claims for its new...

Author: tzink Date: 06/02/2011

Why it’s important to read the Terms and Conditions

I’m watching the first episode of South Park Season 15 on the web (viewer discretion advised…...

Author: tzink Date: 06/02/2011

Solving the spam problem

Last week, I read Ed Falk’s blog post on The Spam Diaries where he commented on a possible solution...

Author: tzink Date: 05/27/2011

Well, well, well. How the mighty have fallen.

You know, over the past few days I’ve been reminded of an episode of South Park.  It’s an...

Author: tzink Date: 05/25/2011

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