I have used Arduino IDE to load up code on my ESP8266 (basically it is an ArtNet node controlling LEDs). In the code I have specified that it is to connect to my local WiFi. That part works without problems.
However, a few days after installation I have noticed that it is also visible as a AI-Thinker access point. What is worse, it seems to have the default password for the WiFi. Now, my concern is that someone might access that node, hack it somehow and possibly steal my home WiFi credentials. That is why I would rather turn off the access point... The problem is that the module is already installed in a rather inaccessible location (under the ceiling, to be specific), so getting a serial connection to it might be rather problematic.
So, my questions are:
1. Am I reasonable in my concerns? Or is the default access point not a reason to worry?
2. Is it possible to turn off the AP without physically accessing the module?