amazon web services - AWS Elastic Load Balancer : white list only my IP

My objective:
To
make my AWS Elastic Load Balancer hittable by only traffic from my
ip.

What I have
tried:

created
a security group in EC2 security groups

set an inbound
rule that allows all traffic from my ip [all, all, all, /32]

assigned this ELB the newly created security
group

attempted to hit the elb from an ip outside
myoffice

The
results:
All traffic, even from ips other than mine could
still hit my ELB (and thus get through to my app servers).

What am I doing wrong? How can I block inbound
traffic to my ELB (and the EC2 instances behind it)?

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