A warning to the great unwashed:
Many companies IT departments now have systems set up to automatically detect any posting which may be directly or indirectly associated with any of their businesses.
Don't ask me how they do it, just accept that it is possible, additionally, be prepared to accept that "trusted" colleagues may not be as trustworthy as you initially thought - a good mate recently got a final warning just for posting an innocent photo.
Because the surroundings were recognised by a "co worker ", he was reported and disciplined in accordance with the Company's Computer misuse policy.