Nikon Coolpix L340 Reference Manual page 6

Disposing of Data Storage Devices
Please note that deleting images or formatting data storage devices such as memory
cards or built-in camera memory does not completely erase the original image data.
Deleted files can sometimes be recovered from discarded storage devices using
commercially available software, potentially resulting in the malicious use of personal
image data. Ensuring the privacy of such data is the user's responsibility.
Before discarding a data storage device or transferring ownership to another person,
erase all data using commercial deletion software, or format the device and then
completely refill it with images containing no private information (for example,
images of empty sky). Care should be taken to avoid injury or damage to property
when physically destroying data storage devices.
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