Hawking proposed the idea that black holes are only "temporary horizons" and they hold light and information temporarily before releasing them back into space in garbled form.
His work addresses the "black-wall firewall paradox" first proposed by theoretical physicist Joseph Polchinski and his colleagues almost two years ago.
Original paper by Stephen Hawking
http://arxiv.org/pdf/1401.5761v1.pdf
Explanations of the article
http://www.nature.com/news/stephen-hawking-there-are-no-black-holes-1.14583
http://www.popsci.com/article/science/stephen-hawking-says-there-are-no-black-holes