Walsh, who resigned from the conglomerate in February, failed to reveal a $20m payment he received from the company for helping CEO Dennis Kozlowski with the failed takeover of finance group CIT.
Half of the payment went to charity but Walsh has greed to pay back the full sum and a fine of $2.5m.
It was news of the payment to Walsh that began the downfall of Kozlowski.
Kozlowski and Tyco’s chief financial officer Mark Swartz have been charged with corruption and both have pleaded not guilty.
Mark McMullen joins the private client services team from Smith & Williamson
Merger between Clear & Lane Chartered Accountants and Magma Chartered Accountants was finalised on 3 February
BDO has taken its new partner intake to 23 during the first half of its financial year, including the appointment of five partners in five weeks
The firm reports 7.6% global fee income growth for the year ending 31 December 2016