It is tragic but the world was always dangerous for women.
However, Islam gives the answer.
And abide in your houses and do not display yourselves as [was] the display of the former times of ignorance. And establish prayer and give zakāh and obey Allah and His Messenger. Allah intends only to remove from you the impurity [of sin], O people of the [Prophet's] household, and to purify you with [extensive] purification.
-Surah Al-Ahzab 33:33
Also, women should travel with mahram.
Women will be much safer and better protected if Islam's teachings are followed.