The knife attack on Saif Ali Khan at his home in Mumbai in January jolted the entire nation. The actor went through two surgeries. After the attack, Kareena Kapoor and Saif Ali Khan heightened their security and also asked the paparazzi not to click their sons – Taimur Ali Khan and Jeh Ali Khan. Now, in a recent interaction, Saif opened up about surviving the attack and how he now walks with security that he isn’t used to. Speaking to ETimes, Saif opened up about the traumatic experience and how it taught him to be careful about locking doors and windows of his house. The Love Aaj Kal actor insisted that everyone should ‘smarten their security.’ “We have a lot, and a lot do not. So while I am grateful, we, we must understand that and be careful,” he said. The actor, however, insisted that though he is very particular about his and his family’s security after the attack, he had never ‘believed in security’ before and ‘hate having people around’ him. But Saif also …