It's been asked before about .andriod_secure folder and/or file, but why is this file dated 12/31/69 when the andriod system had not been invented? .android secure folder or file in my memory card for my LG STYLO AND LG STYLO 3 PHONES date of file 12/31/69
Probably just corrupted time stamp on your file system. So Android rewrote it to default Unix Time. Read about Unix time here (Unix Epoch is 1 Jan 1970 00:00:00 UTC)