Kaprun is generally a very safe place for solo female travelers. Like most European countries, the level of crime is generally low and locals are friendly and very helpful to tourists. It is quite common to see people walking alone, even at night. Despite this, it's always wise to follow standard precautions such as avoiding deserted areas late at night and keeping an eye on your belongings. Any incidents are typically minor, such as pickpocketing or purse snatching, and are more likely to occur in crowded areas like public transportation or tourist attractions. So, practice common sense and safety measures, and you should enjoy a wonderful, hassle-free stay in Kaprun.