You didn\xb4t checked your localLocal Chat Channel Use your common sense. If something jumps into your system flashing bright orange or red you might be in trouble, so GTFO.
You didn\xb4t updating you D-Scan on a regular basis while beeing outside of HighSec Directional Scanner (D-scan) Consider only two groups of ships on D-Scan: Fleet and Corp-Members or those how wants to kill you. There is nothing inbetween. If there is a ship you didn\xb4t know for sure that the pilot is friendly you should...guess what...GTFO! (Disclaimer: Cloaks are a thing and ventures can fit guns, too ;) )