Methods, systems, and computer program products for mitigating email address harvest attacks by positively acknowledging email to invalid email addresses
US8943591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8943591-B2 |
| Application number | US-201313769638-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2013 |
| Priority date | Dec 10, 2009 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Not available on this page yet.
Abstract
Official abstract text for this publication.
A method of detecting and responding to an email address harvest attack at an Internet Service Provider (ISP) email system includes counting a number of failed email address look-ups during a single Simple Mail Transfer Protocol (SMTP) session associated with an originating Internet Protocol (IP) address and responding to the originating IP address with a positive acknowledgement that an otherwise invalid email address exists when the count of the number of failed email address look-ups exceeds a threshold.
First claim
Opening claim text (preview).
That which is claimed: 1. A method of detecting and responding to an email address harvest attack at an Internet service provider email system, comprising: counting a number of failed email address look-ups during a single simple mail transfer protocol session associated with an originating Internet protocol address; responding to the originating Internet protocol address with a positive acknowledgement that an otherwise invalid email address exists when the count of the number…
Assignees
Inventors
Classifications
- H01L63/1466Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04L63/1441Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8943591B2 cover?
- A method of detecting and responding to an email address harvest attack at an Internet Service Provider (ISP) email system includes counting a number of failed email address look-ups during a single Simple Mail Transfer Protocol (SMTP) session associated with an originating Internet Protocol (IP) address and responding to the originating IP address with a positive acknowledgement that an otherw…
- Who is the assignee on this patent?
- At & T Ip I Lp
- What technology area does this patent fall under?
- Primary CPC classification H01L63/1466. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We do not list related publications for this record yet—either no in-corpus citations or no shared primary CPC matches in our current data slice.