IIJ to Offer "Sandbox Option" in IIJ Secure MX Service

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TOKYO-September 17, 2015-Internet Initiative Japan Inc. (IIJ, NASDAQ: IIJI, TSE1: 3774), one of Japan's leading Internet access and comprehensive network solutions providers, today announced that it will enhance the feature set of the IIJ Secure MX Service (Secure MX)-a cloud-based email-security service that provides a range of security measures for enterprise customers-through the addition of the Sandbox Option on October 5, 2015. This new feature effectively counters targeted email attacks.

Sandboxing is a security technique whereby files attached to emails are executed within a secure virtual environment, and suspicious files are detected based on observing the files' behavior. By detecting and blocking both known and previously unknown malware, sandboxing is an effective means of defending against increasingly advanced and sophisticated targeted email attacks.

Overview of the Sandbox Option:

Delivers an assetless solution to targeted email-based attacks

Because the option is provided as SaaS, customers can take advantage of a solution for targeted email attacks without incurring the costs and overhead of owning and operating assets in-house. The option's minimum usage period is only one month, and it can be used for as few as one email account. Therefore, customers can try the option out on a small scale, such as by deploying it only for publicly available email addresses.

To match users' environments within Japan, the sandbox platform is implemented using a Japanese-language version of the Windows operating system and Japanese-language applications.

Can be used with other providers' email services

The option can be used by customers that operate their own email systems in-house or by those that use Office 365, Google Apps, or another email service from a third-party provider. It enables such customers to bolster their security measures easily and at minimal cost.

Provides stronger protection against targeted threats through layered defense

Currently, Secure MX offers a variety of security features, including Click Protect, which detects and blocks attempts to lure users to malicious URLs; Antivirus, which delivers a high detection rate through multiplexing of several antivirus engines; and Sending Domain Authentication, which can detect phishing emails sent from malicious sending servers and reject them. With the addition of the new sandboxing feature, IIJ will deliver a solution to sophisticated targeted email attacks by providing layered defense that combines multiple features.

IIJ will continue to expend every effort to enhance the features that it offers to provide more secure messaging environments.

The statements within this release contain forward-looking statements about our future plans that involve risk and uncertainty. These statements may differ materially from actual future events or results. Readers are referred to the documents furnished by Internet Initiative Japan Inc. with the SEC, specifically the most recent reports on Forms 20-F and 6-K, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements.

For inquiries, contact

IIJ Corporate Communications

• +81-3-5205-6310
• +81-3-5205-6377
• press@iij.ad.jp