Online Security

Security UpdatesSee All

2021/02/15
Message for Asahi Net Members Who are Affected by the Earthquake off the coast of Fukushima
2021/02/09
January 2021 monthly report on Email Virus Check Service has been updated.
2021/01/08
Message for Asahi Net Members Who are Affected by the Heavy Snow since January 7, 2021
2021/01/05
December 2020 monthly report on Email Virus Check Service has been updated.
2020/12/18
Message for Asahi Net Members Who are Affected by the Heavy Snow since December 16, 2020

Blogs by Kaspersky

For the best of your security, here are the links to Kaspersky tutorial information page. for you to gain latest news and tips about online security.

Go to Kaspersky.com Blog Page (Japanese)

Hidden Threats and How to Manage Risks

Although Internet provides convenience, it can also bring dangers to your life. It is important that you gain correct information and take necessary measures to protect yourself.
We will introduce some of possible threats inherent in the world of web that are not seemingly dangerous, but critical. We will also show example methods to countermeasure these threats.

Threats and Countermeasures

Asahi net's online Security Service

We provide various security services in Japanese.

Asahi Net Policies and Practices for Security

Asahi Net, as one of the major ISPs in Japan, has invested our effort to online security matters, too.

For your safety, we continue to ensure that customer’s personal information is well protected with our enhanced security measures.

Privacy Protection and Security Enhancement

Asahi Net is the ISMS (International Security Management System) accredited company (ISO/IEC 27001：2013) which takes proactive measures to constantly challenge security issues online.

Asahi Net Security Measures

Port 25 Blockage

In order to provide secure internet environment for all users, Asahi Net takes the blockage of port 25, through which most of spam emails are routed.

By all ISPs taking initiatives on blocking the port 25, we can confine the spread of unintended virus and a number of spam emails before routed into servers.

IP53 Blockage

In order to prevent servers or routing devices to be targeted for any fraudulent use, Asahi Net takes a proactive measures called IP53B（Inbound Port 53 Blocking）.