The first MiFi device was introduced in the U.S. in May 2009 by Novatel Wireless, and Novatel owns a registered trademark on the "MiFi" brand name in the U.S. The Novatel MiFi is also marketed as such in the Netherlands, Egypt, Spain, Portugal, Germany, Poland, Romania, Hungary, Slovenia, Qatar, Kuwait, New Zealand, Singapore, Thailand, Japan, South Africa, Puerto Rico, Canada, and Mexico. However, in the United Kingdom, mobile operator 3 owns the "MiFi" trademark and markets a similar device from Huawei under the name.
Mobile phones with an internet connection can often be turned into Wi-Fi hotspots in a similar way to dedicated MiFi devices. A caveat of doing this however is that it will drain a phone's battery more quickly, so plugging a phone being used this way into an external power source is recommended.
In January 2010, two major security holes were discovered with the Novatel MiFi 2200 which, if properly exploited, could allow a malicious user to obtain the device's current GPS location and security keys. If the malicious user were physically close enough to use the device's Wi-Fi signal, this could give access to the MiFi's 3G connection as well as any other connected devices. Novatel responded that a security patch would be available in February 2010.
The popularity of MiFi devices can also be problematic for corporate network security. Corporations generally expect to control on-site internet access: many use firewalls to reduce the risk of malware, and some enforce restrictions aimed at employee productivity. Personal mobile hotspots may provide a "back door" by which employees can circumvent these precautions.
In May 2010, the Mifi 2372 was recalled in Canada by Bell Mobility and Rogers Communications. In two documented cases, difficulty of opening the MiFi battery compartment had caused customers to use levels of force that caused physical damage to the batteries, which subsequently overheated. Novatel replaced the recalled units with a type that featured an easier-to-open battery compartment.
Customers were sent prepaid courier envelopes and instructed to send back their Mifi units for replacement of the battery and battery compartment cover. Customers were notified that Novatel would return the serviced units within 6 to 8 weeks of their return. Bell customers were provided with cellular internet access via Novatel U998 USB sticks, which were provided as temporary replacements by Bell.
At two major trade shows in 2010— Google's first public demo of Google TV and the iPhone 4 demonstrations at the 2010 Apple Worldwide Developers Conference— keynote presentations using available Wi-Fi connectivity were disrupted by network unreliability. The problem was traced to massive radio interference, caused by the popularity of MiFi and similar devices for "liveblogging" from the trade show floor. In the case of the Apple conference, Apple CEO Steve Jobs stated that 570 different Wi-Fi networks ("several hundred" being MiFis) were operating simultaneously in the exhibit hall.
Mobile phones with an internet connection can often be turned into Wi-Fi hotspots in a similar way to dedicated MiFi devices. A caveat of doing this however is that it will drain a phone's battery more quickly, so plugging a phone being used this way into an external power source is recommended.
In January 2010, two major security holes were discovered with the Novatel MiFi 2200 which, if properly exploited, could allow a malicious user to obtain the device's current GPS location and security keys. If the malicious user were physically close enough to use the device's Wi-Fi signal, this could give access to the MiFi's 3G connection as well as any other connected devices. Novatel responded that a security patch would be available in February 2010.
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Customers were sent prepaid courier envelopes and instructed to send back their Mifi units for replacement of the battery and battery compartment cover. Customers were notified that Novatel would return the serviced units within 6 to 8 weeks of their return. Bell customers were provided with cellular internet access via Novatel U998 USB sticks, which were provided as temporary replacements by Bell.
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