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Protection against a mobile phone’s surroundings listening and recording



Obviously mobile phones have an infinite number of benefits for communication and business; however, they also create certain threats of information leakage. One of the potential leakage channels is the phone’s microphone being able to pick up surrounding acoustics with a high sensitivity. The PHONE SAFE SUMMIT has been developed by information security professionals to protect against this exact type of threat.

While developing this product the following features and vulnerabilities of modern phones were taken into account:

The phone can be intentionally, or covertly, ‘off-hook’ during important negotiations
Voice recording software can intentionally , or secretly, run on the smartphone
Listening software can run in a ‘stealth’ mode Spyware can be installed on the smartphone without the owner’s knowledge, allowing attackers to activate covert eavesdropping around the phone. There are known cases of transmission of such software by exploiting the vulnerabilities of some messengers
The acoustic environment around the phone can be transmitted to the server , or cloud service of the attackers either in real time or with a postponed uploading
Smartphone apps which have access to the phone’s microphone can be used for eavesdropping in cases of them having been hacked (usually messengers or social network apps)
Uploading of information can be done in the following ways: conventional voice call, mobile internet, Wi-Fi, Bluetooth, the phone’s connector

Unfortunately, the creation of radio interference (RF jamming of mobile communications, Wi-Fi and Bluetooth) does not guarantee protection, as there is still the possibility of accumulating information in the phone’s memory (voice recorder mode). Given this factor, the only reliable way to protect is to block the phone’s acoustic channel. This prevents acoustic information from leaking, regardless of how it is listened to or transmitted. A number of modern technologies have been used in the PHONE SAFE SUMMIT device for your protection.

Blocks the microphone of the phone with the help of non-filterable ultrasonic interference
Efficiently prevents surround recording apps from capturing conversations and sounds
Suppresses both the bottom and upper microphones of the phone by creating two-side interference
Up to 4 phones can fit inside
Inaudible frequency of interference has been optimally selected for the best performance and affects all existing models of smartphones
Made with the design of an attractive natural wood stand
The acoustically isolated phone can remain close to the owner where the screen can be easily observed
The phone stays online and available for incoming calls
No illegal radio jamming
Can be powered by the external USB, or from the built-in rechargeable battery
Has 2 sensors, increasing the battery’s resource: the device starts producing interference when a phone is inserted (IN USE sensor) and a conversation is present (ACTIVE sensor)
Is compatible with all types of phones (max. height 180 mm)

Type of interference: Ultra sound, inaudible frequency
Power of noise: <2 W in the active area Dimensions (width x height x depth): 262x78x82 mm Compatible phones: Height up to 180 mm Weight: 600 g Power: USB 5V Built-in rechargeable battery Current consumption: 500 mA (noise mode) 6 mA (stand-by mode) Battery: Li-Ion, 3.7 V, 6800 mAh Connector: USB Type C Battery resource: >10 hours
Recharging time: 12 hours
Sensors: IN USE , ACTIVE
Indicators: BATT, ACTIVE, IN USE
Capacity: Up to 4 phones

2. USB Type C cable
4. User manual