The boundaries of privacy, secrecy and access are often defined by locks and keys, both physical and metaphorical. This finger ring from Ancient Rome is adorned with a prominent symbolic key. Rings such as these were worn to show that the wearer is a keeper of keys (head of a household) and as homage to Janus, the god of doorways. Janus's role extended far beyond doorways to the ability to grant access, influence transitions, time, passages, beginnings and endings. Janus is usually depicted as having two faces, since he looks to both the past and the future.
To be 'locked out' is to be impeded. The boundaries that we seek and need to lock others out of are blurring, as a direct result of technologies' influence upon us. The edge of this territory seems to now be resolving into two binary states: privacy and secrecy. Most members of society would only request common and decent privacy from technology, but are increasingly being forced into the realms of secrecy. Technology proves that privacy is somewhat of an ambiguous concept to be realised, for it is based on moral values that technologies and their authors have arguably low levels of literacy within.
The manifest implications of keys and doorways continue to this day, and might be best seen through the encryption debate which has recently consumed Apple and the global tech industry. Who has access to doorways, (in this case the FBI's request to gain a means of access to one specific iPhone and resultingly all iPhones), has always been a question of who has access to the power of knowledge.