The Samsung Galaxy Experience at Lollapalooza on August 3, 2013 in Chicago City.

Samsung has blazed a trail with its highly popular lineup of Android smartphones, reportedly overtaking rival Apple as the world's most profitable handset vendor in the second quarter. But the boss of the company's electronics division says his biggest fear is to become complacent.

"My biggest worry is that we might get too full of ourselves for what we have achieved. About 20 of Samsung's products are number one in their respective category around the world. It's very important to remain humble," Boo-keun Yoon, CEO, Consumer Electronics Division at Samsung Electronics told CNBC.