Threat Of Attack
The Threat of Attack function in LDOE helps let you know the possibility of being attacked by raiders. The red skull and cross bones icon can be seen in the upper left corner of your screen.
''"You showed yourself to be a raider. During the stated period of time, your base can be attacked by other survivors. If you revenge or attack others' bases while being under threat, the risk of your base being attacked increases and the period of threat gets longer."''
You may lower your threat level by not raiding or revenge attacking others' bases. You may also use coins to reset the Threat of Attack meter.
Each coin is equal to about 5.75 minutes of threat. I have found that no matter what level of threat you achieve you are only raided once a day. The number of skulls in your threat level does not seem to change this outcome.